Odd Behaviour

Official Synopsis
Larry is acting strange, and Bob wants to get to the bottom of it.

Characters

 * Larry
 * Bob
 * Purple Hat Man

Locations

 * Mavis' Appartments
 * The Cave

Key Objects

 * Drill

Errors

 * At the start of the episode when Bob is alone, he wonders if Larry has been replaced with a 'preposter' instead of an 'imposter'.