Yeah plenty of times. One of the first biggest ones I was in was age 16. I was in 10th grade and at a Cannibal Corpse concert and was moshing for most of their set and then midway through Hammer Smashed Face, I exited the pit for a second to catch my breath. Then some shirtless asshat threw me back into the moshpit and then I got elbowed in the mouth and had a bruise in my mouth for a week. 2 years later in 2012, I saw them again for Summer Slaughter and during the same song, I got punched in the eye by a tall black dude. But at least unlike the first time I saw Cannibal Corpse and got injured, at least this guy actually came up to me to apologize. So I was like "Ehhh, shit happens, dude."