![My mom used to sing it to me
when I was sick.
My mom used to sing it to me
when I was sick.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
My mom used to sing it to me
when I was SICK.
The Big Bang Theory Season 1, Episode 11
![Well, you know how when you're sick,
Well, you know how when you're sick,](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Well, you know how when you're SICK,
The Big Bang Theory Season 9, Episode 13
![Sheldon, you're sick. Go back to bed.
Sheldon, you're sick. Go back to bed.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Sheldon, you're SICK. Go back to bed.
The Big Bang Theory Season 10, Episode 20
![- Yeah, well, I'm sick too.
- Not my problem.
- Yeah, well, I'm sick too.
- Not my problem.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
- Yeah, well, I'm SICK too.
- Not my problem.
The Big Bang Theory Season 3, Episode 15