Two things I find distressing: paintball and "soft" air guns. Both are used to shoot actual things at other people; paintball is sometimes used for vandalism as well.

Story:

My brother was working for the Illinois State Police, and a bunch of "the boys" kept prodding him and another guy to come out and play paintball with them. Finally, he and the other guy agreed, mostly to get the others off their backs.

My bro was REACT in Vietnam and no stranger to ambushes and combat. The other guy, who happened to be a good friend of his, had been combat infantry in 'Nam and had a Bronze Star with V.

The two of them arrived at Ye Olde Paint Ball field, picked up the guns and ammo, and off the two of them went. No laughing and joking, just a weapons check and zero and away, no masks, no "body armor".

They ambushed the other TEN guys, "killing" all of them. Silently. No boasting and bragging. They ended the "game" in about fifteen minutes, and then they went to a tavern, had a couple beers, and went home.

They were never asked to "play paintball" again.