[The slamming noise makes him jump about three feet and half out of his skin.]

J-Jeez! Sorry, sorry, calm down! If your time machine can get broken by dropping a shoe on it I don't wanna think about what else could happen! I mean, you drop people on there all the time.

[Scare him you might, but he can be a stubborn brat, too. Before you can throw him out or whatever though he's just going to quickly follow his shoe onto the platform and brace himself visibly. WILD HORSES.]

... I was just makin' sure it was off. [Talking to the now considerably less scary one seems like a good option. Yep.]