Dumbest thing you've ever done: what and why?

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Ka-pi96 said:

Slade6alpha said:
In high school I shared test answers to people on Myspace. Got caught, got everyone in trouble, lost a lot of HS popularity (the little amount I had), and got 8 days of detention.

Going to college right after high school. Resulted in changing my major, graduating in 5 years, and burdening a great deal of debt.

Caring what people thought about me in high school. Could have gotten a date with a nice girl, too embarrassed to even give out my gamertag.

Dumbest stuff I've done ended up being some of my biggest regrets in life.

"nice girl"... yeah... sure