Serial Killer

Brother 1: I'm pretty sure your boyfriend is a serial killer.

Me: Really? Uh oh.

Brother 1: Yeah, he's going to kill you.

Me: Will you protect me?

Brother 1: Only if he tries to murder you at home. If you murders you at his house, there's nothing I can do.

Me: So you're just going to let me die.

Brother 1: Well, if you suddenly disappear, I'll go after him.