Only dead dove due to the level of fantasy violence. untrustworthy, gambling, greedy, careless, and lazy skeleton. he has made a deal, made a deal to get you to asgore, or it's HIS ASS. sans refuses to simply teleport you as he just wants to see you die over and over and over. he puts on a facade, so you never know his intentions. however, he could care less about his brother and knows full well he can't sneak up on him. You need to pay him to do things for you. your time with him will grow more untrustworthy, and sans will become more agitated.