A line in The Wounded always creases me up:
"The Cardassians have no honour. I do not trust them."
"They're our allies now, Mr. Worf, we have to trust them."
"Trust is earned, not given away!"
The thing is Worf was right, the Cardassians could not be trusted.
yeah, it seems like that scene is supposed to be for laughs, to show Worf as paranoid and suspicious, but the end of the episode kind of undermines that, since WORF WAS RIGHT!