![- Sorry. I had to clock out.
- Oh, no, that's okay. Ahem.
- Sorry. I had to clock out.
- Oh, no, that's okay. Ahem.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
- Sorry. I had to CLOCK out.
- Oh, no, that's okay. Ahem.
The Big Bang Theory Season 4, Episode 4
![I power a clock with a potato.
I power a clock with a potato.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
I power a CLOCK with a potato.
The Big Bang Theory Season 6, Episode 22
![has got my biological clock
ticking like crazy.
has got my biological clock
ticking like crazy.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
has got my biological CLOCK
ticking like crazy.
The Big Bang Theory Season 11, Episode 17
![Oh, yeah. The Mr. Spock cuckoo clock.
Oh, yeah. The Mr. Spock cuckoo clock.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Oh, yeah. The Mr. Spock cuckoo CLOCK.
The Big Bang Theory Season 10, Episode 10
![couldn't power a potato clock.
couldn't power a potato clock.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
couldn't power a potato CLOCK.
The Big Bang Theory Season 10, Episode 12