Continuity: Whilst Randy and Sharona are in the kitchen feeding the monkey you can see near the start of the shot that Randy has his right arm leaning against the kitchen counter top. In the next shot his arms are suddenly folded.

Revealing: In the scene where Darwin and Monk are in the kitchen and Monk calls Dr.Kroger. Darwin pulls the phone out of the wall, but there is no line from the phone to the jack in the wall.

Audio problem: When Darwin is screaming at the bald landlord, his mouth isn't always moving.

Revealing: Throughout the episode, the panic room door is made to look metal. But later when a hole is cut in the door, you can easily tell by looking through the hole that it is wood.

Plot hole: After Monk has accidentally pushed the close button on the panic room door, Captain Stottlemeyer tries to guide Monk to pushing the open button on the wall. After a couple of minutes the captain puts his hand through the hole to open the door. The scene doesn't make sense, however. Stottlemeyer makes no attempt through the whole scene to try and open the door up for Monk, who is having trouble with the locked room. He can see the buttons and would easily be able to see he could reach it or at least try to reach it.

Continuity: Darwin the chimp pulls a large blue bowl from Monk's kitchen cupboard and throws it on the floor, breaking it. We cut to a close-up of Darwin spinning, then pull back as he starts pulling out glasses - and the blue bowl is back on the shelf, intact. When the angry landlord enters, Darwin pulls the same bowl from a different shelf and throws it again.

Deliberate "mistake": All the dishes that are usually neatly arranged in Monk's kitchen cupboards (pots, pans, stacks of plates etc.) have been replaced here by cheap plastic ware, so that Darwin the chimp can pull them all out and throw them. Though we hear shattering-glass sound effects as they supposedly hit the floor, the dishes Darwin bangs together and throws are very obviously plastic.