Robert

Robert is a relatively nice person to strangers, but if you know him well enough and you are friends with him he will roast the ever-living shit out of you to the point where you have a mental breakdown. He will be funny and athletic, but this is drowned by the fact that he will use everything against you, so don't tell him any secrets or else.

"hey look at that douche-bag"
"ah must be a Robert."