I can't take it anymore but I'm scared to tell anyone

i have a friend who's like that. says he's scared shitless when you do something to him, and you can tell he means it, but he just seems dispondent. trust me, it's a good thing. 2 guys "tried" (and i really emphasise the "tried" part) to rob us, and he stood there looking seriously indifferent, and it really freaked the dudes out. i on the other hand, was laughing at them, but that's cos i'm a bit loose headed, and i could kick both their asses one handedly.