If Transformers were humans, Roadgrabber would be that creepy kid who likes pulling the wings off flies. There's nothing he likes better than to open fire on a group of Autobots and watch them die slowly and horribly. Nothing horrifies him more than suffering injury or death himself, though, so he'll do all this from the safety of his Pretender shell. He'll only leave it to watch his victims die up-close—and even then, only when they're in too much agony to fight back.