Oh, OUCH.
The Big Bang Theory Season 1, Episode 13
Ouch.
The Big Bang Theory Season 12, Episode 21
Ouch! String burn. String burn.
The Big Bang Theory Season 3, Episode 6
And there's the first
zinger. Ouch.
The Big Bang Theory Season 5, Episode 11
Ouch.
The Big Bang Theory Season 5, Episode 16