An own goal occurs in goal-scoring games when a player scores a goal that is registered against his or her own team. It is usually accidental, and may be a result of an attempt at defensive play that failed or was spoiled by opponents. It is considered one of the most embarrassing blunders in sports.

The term has become a metaphor for any action that backfires upon a person.

In association football , an own goal occurs when a player causes the ball to go into his or her own team's goal, resulting in a goal being scored for the opposition.

The fact that the defending player touches the ball last does not automatically mean that the goal is recorded as an own goal. Only if the ball would not have gone in the net but for the defending player would an own goal be credited. Thus a shot which is already "on target" would not be an own goal even if deflected by the defender. Then the attacker is awarded the goal, even if the shot would have otherwise been easily saved by the goalkeeper. Some scorers will give credit to the attacker if the defender's mistake caused the own goal, similar to ice hockey. The Laws of the Game do not stipulate any rules or procedures for to which players goals are credited, indeed such records are not a compulsory part of the game.

Ownership of property may be private, collective, or common and the property may be objects, land/real estate or intellectual property. Determining ownership in law involves determining who has certain rights and duties over the property. These rights and duties, sometimes called a 'bundle of rights', can be separated and held by different parties.

The question of ownership reaches back to the ancient philosophers, Plato and Aristotle, who held different opinions on the subject. Plato (428/427BC-348/347BC) thought private property created divisive inequalities, while Aristotle (384BC-322BC) thought private property enabled people to receive the full benefit of their labor. Private property also circumvents what is now referred to as the “tragedy of the commons” problem, where people tend to degrade common property more than they do private property. While Aristotle justified the existence of private ownership, he left open questions of (1) how to allocate property between what is private and common and (2) how to allocate the private property within society.

A goal is a desired result an animal, person or a system envisions, plans and commits to achieve—a personal or organizational desired end-point in some sort of assumed development. Many people endeavor to reach goals within a finite time by setting deadlines.

It is roughly similar to purpose or aim, the anticipated result which guides reaction, or an end, which is an object, either a physical object or an abstract object, that has intrinsic value.

Goal-setting ideally involves establishing specific, measurable, attainable, realistic and time-targeted objectives. Work on the goal-setting theory suggests that it can serve as an effective tool for making progress by ensuring that participants have a clear awareness of what they must do to achieve or help achieve an objective. On a personal level, the process of setting goals allows people to specify and then work towards their own objectives — most commonly financial or career-based goals. Goal-setting comprises a major component of personal development. A goal can be long-term or short-term.

Patrick Timothy Kane, Jr. (born November 19, 1988) is an American professional ice hockey right winger/center currently playing for the Chicago Blackhawks. The Blackhawks selected him with the first overall pick in the 2007 NHL Entry Draft. Kane won the Stanley Cup with Chicago in 2010.

Kane attended the St. Martin of Tours school and started playing for the Cazenovia Chiefs in his hometown of Buffalo, New York. He played for the West Seneca Wings, Buffalo Regals, and Depew Saints.

When Kane was fourteen, he played junior hockey for the USA Bobcats, scoring many goals and earning the title of MVP. Kane relocated to Michigan where he lived with former NHL player Pat Verbeek, having been convinced to play for the Honeybaked AAA hockey club in Detroit. The club is a part of the Midwest Elite Hockey League. Kane's career with Honeybaked lasted for 3 years.

The London Knights drafted Kane in the 5th round of the 2004 Ontario Hockey League Midget Draft, but he did not choose to play for the Knights until the 2006–07 season. Instead, Kane played for the United States U-18 National Team Development Program (NTDP), where he led the team in scoring with 102 points during the 2005–06 season. Playing on a line with Sergei Kostitsyn and Sam Gagner, he amassed 145 points for the OHL scoring title and combined with Gagner and Kostitsyn for 394 points.

Bernard Parker (born 16 March 1986 in Boksburg, Gauteng) is a South African professional association football midfielder/striker playing for Kaizer Chiefs.

Bernard Melvin Parker was born and grew up in Reiger Park, a township next to Boksburg. He was quite good in a variety of sports and excelled in short and long distance running as well as achieving Eastern Gauteng colors in swimming.

A product of the School of Excellence, Parker made his debut in the professional ranks for Cape Town's Hellenic FC, later bought and renamed Benoni Premier United. After the club was once again renamed and moved to Durban he remained with Thanda Royal Zulu F.C. until early 2009 when he obtained a transfer to European Cup Winners Red Star in Serbia. His stay in Belgrade was cut short after reports that the club had cash flow problems and owed its players' salaries. He consequentially signed with FC Twente in July 2009 and was a member of the team that won the Dutch 2009–10 Eredivisie. After Twente Manager Steve Mclaren's move to the German Bundesliga, Parker failed to convince new coach Michel Preud'homme of his qualities and thus spent the first half of the 2010/11 Dutch season mostly on the bench. He joined Leicester City on trial in December 2010 with a view to a permanent move away from the Dutch club. On 18 January 2011 he moved to Panserraikos F.C. on loan, to secure extra game time and returned to FC Twente after the end of the 2010/11 Greek season. After receiving interest from Swedish clubs Malmö FF and Helsingborgs IF as well as South Africa's Kaizer Chiefs, Parker chose the latter ahead of the other clubs.