Corrected entry: When Homer enters Moes bar after one month without beer, two identical drunks are visible in one shot.
Corrected entry: The hamster gets electrocuted mildly by a food pellet with an electric current. However, it is an electrical insulator so it couldn't have an electric current.
Correction: It's impossible to tell what the battery is connected to. Yes it's the same shape as a food pellet but hamsters will gnaw on anything including the bars of their cages, which are metal.
Correction: The identical drunks are very visible in several shots. It's defintely not a case of the same shot reused so they must be twins.
tw_stuart