>>36442722It's obvious from looking at the image that Brendan isn't in any mortal danger or major danger to his person. He looks beat up, but that's because he's playing rough with a rough pokemon. Sharpedo also doesn't seem to be in aggressive mood and is playing as gently as it can with it's master. It's also implied that Brendan has played like this before, given sceptile's expression and preparedness with a first aid kit.
tl;dr Brendan is obviously fine and he's done this before