In this episode, they say that Andy's father ran away to Argentina with a younger woman, but in season 6, episode 22, Andy says if it wasn't for secretaries, he wouldn't have a stepmom.
When Oscar hands Kevin a couple dollars for the snack machine, the bills are folded over into quarter the length. Seconds later when Kevin walks into the break room the bills are extended to their full length.
When Dwight received the call from the fictitious radio show host, he would have recognized that the call was coming from within the office.
When Kevin's ice cream falls, it's clear that he just pushed it off with his thumb.