RAB went if only because Mac said they used to be friends and he used to work there. Though this whole shoes with wheels thing kind of freaks him out. Not sure he will be doing that. Nope. Not happening. Unless someone is really good at convincing.
He will also notice Mary seems short with everyone and probably a sarcastic butt. But more in the way of trying to make her feel better than worse. Agreeing with what she says, copying her crabbiness. Being a copycat girlfriend. And yes, I just said that. Because of the lols.