When Fred chases Lamont with the bat, he accidentally knocks the top off of the rubber prop cake.
Fred said this Louisville slugger will knock you out. There was no brand burned into the barrel of the bat like all Louisville slugger bats.
In the opening Donna says Osgood Perkins asked her to marry him. She mentions that she brought him to the house once (he was a patient), but in a previous episode his name was Osgood Wilcox.