(Strip Number 885, Original Publication Date, 5 July 1985)
Panel 1: As things roll merrily along, we find Michael doing a pretend ad for a pretend dog food called Barfo that supposedly has a taste dogs can't resist.
Panel 2: Lawrence and Lizzie laugh as he pours it out and lauds it as having the taste of leftovers while Farley eats it like he was in a real commercial.
Panel 3: When Lawrence takes the box away, a horrified Mike asks him what he and Lizzie are doing.
Panel 4: When Lawrence says that they're changing channels, Mike gets gobsmacked.
Summary: This is because this is his idea and he doesn't it taken over by other people because it's HIS and THEY can't have it.