Especially that headshit!
We were in the elevator room and a dude came up.
I took two shots at him, the first one I missed then I shot again as ghoul stood up from crouching beside the lift.
The dude moved to the side and my shot hot ghouls face. Since it was Swat that didn't work out so well.
That was the only time! Besides Grifball, and as Hicks said, it's unavoidable.