Oh, OUCH.
The Big Bang Theory Season 1, Episode 13
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
Ouch.
The Big Bang Theory Season 12, Episode 21