A tourist thinks a crocodile inside of an enclosure is some sort of prop and comes up with the bright idea to hop on down and take a selfie with it because why not?
But he quickly learns after the croc clamps down on his forearm that he is dealing with the real thing.
At least for his own sake he's able to get his arm free still in tact. And at least for his own sake a dude nearby has a bandana on-hand to use as a tourniquet.