8 Simple Rules - Season 3 Episode 23 -

After Principal Gibb (Adam Arkin, ""Chicago Hope"") and Cate fall asleep at the house while watching a movie, the family catches them and falsely assumes that the two are having a relationship. Meanwhile, Bridget, Kerry, Rory and C.J. are forced to go ice-fishing with Jim in order to spend quality time with their grandfather - but unbeknownst to them, Jim would much rather be left alone and is forced to keep up a happy fagade.