Cigarettes; tried as a dumb ass teenager, wisely said, yeah, nope.
Roller-coasters, I don't know. It's been a while, but it was not nearly as fun as used be is what I remember.
New vehicle, nope, never ever again. Only did that once with a car, once with a moto. Stupid, stupid, stupid.
Might as well say never again to riding a moto. Fun times, but just not worth it, no way, no how.