I've been paintballin 4 times.
First time, it hurt like hell, didn't think i'd go again.
Second time, I didn't get hit as much, I used some geewwdd tactics, still hurt though.
Third time, I had to do a 'President' run, fuck, it hurt but It felt gooood.
Fourth time, the most painful. 'Chicken Run'. You have to sprint 100 meteres with people firing at you from either side. Again, it hurt, but it felt even better.