What habits or tastes did you keep from your teenage years and that slightly ashame you as an adult?

I learned to drive when I was about 16. My parents never had any food in the house, plus two extremely aggressive dobermans in the kitchen, so I couldn't go in there anyway.

So sometimes I would sneak out right before MacDs close and eat a burger in the parking lot.

I'm a lot older now, but occasionally I still eat fast food in the darkness of the Walmart parking lot

I find it calming for some reason.

Bonus hilarity:

At Xmas in 1979 I had an Xmas tree lot with a slave driver boss -- 12 to 18 hours a day. (He did partially pay me with a shopping bag full of wed.)

On night I got off around midnight and headed off to the local Mcds, order my food, and visit the restroom to take a piss -- and somehow managed to drop my car keys in the piss water.

Not my favorite day ever.

Then I get home and find that they had released the dogs in the whole house and I had to yell and pound on the door to get my mother to lock them up.

FML