
Fifteen years old.
The Big Bang Theory Season 1, Episode 12

Here we go. Fifteen.
The Big Bang Theory Season 6, Episode 23

He does that all the time. Fifteen.
The Big Bang Theory Season 4, Episode 21

- Fifteen seconds.
- Come on, snipers.
The Big Bang Theory Season 1, Episode 14

- Fifteen.
- Fifteen?
Game of Thrones Season 7, Episode 5