
No, I think it's stupid.
Aha!
The Big Bang Theory Season 7, Episode 16

Aha. There you go.
Breaking Bad Season 2, Episode 10

Aha! Good question.
The Big Bang Theory Season 5, Episode 17

A-ha! You are upset.
The Big Bang Theory Season 10, Episode 20

Aha.
The Big Bang Theory Season 1, Episode 12