[Moonmad27]

How about Squidward?! Why didn't they point out several comments in the show about him that hint that...well, you know... Offhand I can think of two, one where Mr Krabs pointedly comments that Squidward is "artistic" (said with a verbal "nudge, nudge" that would fly over little kids' heads) and in another where music is playing and Mr Krabs wonders out loud why Spongebob is listening to show tunes, Squidward's type music.

[LdSentinal]

Squidward's gay?! No way! He just has a thing for his clarinet.

[AmishDude]

Squidward listens to public radio according to the movie.