...when you accidentally spill peach
Snapple into a helium-neon LASER.
The Big Bang Theory Season 2, Episode 6
...wearing the birthday king crown,
playing LASER tag with all my friends.
The Big Bang Theory Season 1, Episode 16
Look, I need to get to the LASER lab.
The Big Bang Theory Season 2, Episode 5
Too bad. You know the rules
of Secret Agent Laser Obstacle Chess.
The Big Bang Theory Season 2, Episode 18
Sheldon, I told you, I only have access
to the free-electron LASER at night.
The Big Bang Theory Season 2, Episode 5