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