Buying that really cheap sports car with money i didn't have.
Was kicked out of the house by my housemates for not paying rent, fined for speeding and dangerous driving, lost the car because I couldn't afford tax or repairs, and ending up living with a "friend" with whom I ended up having a fight that involved the cops.
Spending a portion of my check on this camcorder that I really wanted, assuming that I would receive additional funds from my educational institution later that week.
Being short on money for gas. which meant that I had to walk to work. My job is over 25 miles away. Needless to say, I stole someone's bike. Keep it on the low though.
Co-signing on a $200 TV for a 'friend' of a girlfriend, with the rider that if he couldn't pay for it, I'd take the TV and pay the bill.
Motherfucker went back to Krazy Kelly's and added on $3000 worth of stuff, didn't pay once, fucked my credit; I went to court, fought and won when neither Krazy Kelly's nor Trans-Canada Credit showed up.