When Moe is knocked into the wall, the table next to him tilts to the right with the fishbowl sliding just about off the table. But in the next scene the table tilts all the way to the left and the fishbowl lands on his head.
When Larry and Moe are trying to get the better of each other at Jean's apartment, Larry's line "I told him a two or thing" is backwards. Though it typically would be said as "a thing or two", the Stooges often mangle words and phrases.
(at around 2 mins) Larry looks into his mirror and it breaks. The rod that broke the mirror can be seen retracting into a hole in the wall.