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Fans riot after the Vancouver Canucks lost in Game 7 of the Stanley Cup Finals, 2011.
1. Their sports team wins.
2. Their sports team loses.
3. Their sports coach leaves to coach another team.
4. They were asked not to party.
5. Black Friday.
6. Pumpkins.
7. Straw hats.
8. No more beer.
9. No more Cabbage Patch Dolls.
AP Photo/The Boston Globe, Jeremy Fox
People riot at a pumpkin festival in Keene, New Hampshire, 2014.
10. Woodstock '99.
11. Spring break wasn't fun enough.
12. They don't like disco anymore.
13. St. Patrick's Day.
14. A guy is fired for covering up child molestation.
15. Surfing.
16. Desegregation.
17. The prospering of another race.
Nabil K. Mark/Centre Daily Times / MCT
Penn State students riot after Joe Paterno was fired for helping to cover up Jerry Sandusky's child molestation scandal, 2011.