Star Trek: Voyager1995

[Jaffen is telling his co-workers an anecdote]

Jaffen:
...all of them about my father, and he couldn't understand why I wasn't insulted. Finally, I just had to tell him: "I'm Norvalen. I don't have a father!"

[Tuvok bursts out laughing]

Jaffen:
It wasn't *that* funny, Tuvok.

Tuvok:
[laughing] On the contrary! The man was ignorant of how your species procreates. His attempt to disparage you ultimately humiliated him. Irony is often a source of humor.

Jaffen:
Yes, well, when you explain it like that... it's not funny at all.