In airsoft, the beebees can sting pretty bad when they hit you, but some people still choose to ignore getting hit and don't call them. They assume no one can see them.
Even paintballs suck when they hit you. Mask shots are great because those don't hurt lol The worst is when your shirt comes up that litte bit and you get nailed on bare skin.
I'm a big baby so I didn't play much paintball lol