First in "Baby Steps", during a fight, Lana won't let Lisa test any experiments on him. They both then get stuck on a tree, her acrophobia is kicked in when too scared to get down by rescuing him. Clyde helped lowering them and got hugged by Lana.
In "Fool's Paradise", Lana mentioned him while praying before sleeping.
In "Job Insecurity", he is shown when Lana viewed Mr. Grouse the difference between a normal mouse and a computer mouse.
In "Tripped!", Lana brought him along with her other pets, Hops, and El Diablo on the family vacation.