The feeling I got watching this video of some poor kid getting dunked on is similar to how I felt watching one of those "Faces of Death" VHS tapes from the 80s or maybe some of those PETA videos they send out.  Actually it's more like the fire extinguisher scene from "Irreversible".  Well, not that bad so  how about the head crushing scene in "Drive."  Actually it's nowhere near that nasty or disturbing but I did flinch, yell some curse words and wanted to ask that kid if he was ok.