In the hospital room Dr. Hartman is seen putting on latex gloves, then in the next shot they're missing.
Cleveland Jr. claimed that opening the door lets out too much air conditioning. Opening a window to try to climb in takes up too much air conditioning. Cleveland Jr. should've just opened the door to get in his house because it would've taken him less than a second to get in but trying to climb in to the window and due to his weight. Leaving the window open could've taken too much air conditioning.
There is a summer time again in this episode, despite there was fall in previous episode. (Quahog is a snowy town at winter).
Peter should've flashed his flashlight at Cleveland Jr. in the first place. If he flashed his light. He wouldn't have shot him.
Knowing that Peter is stupid. Cleveland should've known that Peter shot Cleveland Jr. accidentally instead of accusing him of being racist.
Peter confusingly calls Donna "Latisha". Although he's a stupid man. Peter should've known Donna's name and that she's been married to Cleveland for years.