Gilligan's Maynard G Krebs reference
Haven't read about it before, and I just noticed it after all these years.
In 'Ring Around Gilligan', Skipper accuses Gilligan of loading up their hut with all the coconuts. He replies "Skipper, I didn't do it. I don't like work. In fact, I hate work. I'm pro lazy."
Bob Denver's previous sitcom character was a beatnik slacker who hated work, and would get upset at the very mention of the word.
I'm sure a lot of the sly references Mr Howell came up with were suggested by Jim Backus (likely even improvised), so perhaps Bob suggested the "work" line as a nod to 'The Many Loves of Dobie Gillis'.