![The building's plumbing.
The building's plumbing.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
The building's PLUMBING.
The Big Bang Theory Season 4, Episode 18
![...suggest that Leonard is humorously
mocking your efforts in space plumbing.
...suggest that Leonard is humorously
mocking your efforts in space plumbing.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
...suggest that Leonard is humorously
mocking your efforts in space PLUMBING.
The Big Bang Theory Season 2, Episode 22
![...but it's nice to know
everything's okay with your plumbing.
...but it's nice to know
everything's okay with your plumbing.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
...but it's nice to know
everything's okay with your PLUMBING.
The Big Bang Theory Season 4, Episode 18
![I'm quite familiar
with plumbing.
I'm quite familiar
with plumbing.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
I'm quite familiar
with PLUMBING.
The Big Bang Theory Season 7, Episode 2
![and not pick up a few things
about plumbing.
and not pick up a few things
about plumbing.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
and not pick up a few things
about PLUMBING.
The Big Bang Theory Season 10, Episode 4