When Dwight and Gloria are about to go back to The Freddy with Nathan he turns to see Gloria wearing a bulletproof vest. When the camera angle changes the vest is gone.
Vince-in-Dave's-body tells Dave that Dave owes him $3.95 for the purchase of band-aids that he put on a cut on Dave's body, but, being in Dave's body, Vince would have logically been spending the money in Dave's pocket and not his own money.