For drinking and deriving.
Ein stein. - From Big Nate, as told by my kid.
What's the Difference between a tea bag and a used tampon - I dunno... - I'm never drinking tea at your house again then!
He kept on and on about his mateys.
I just booked a cook for cooking the books."
Because you should never drink and derive.
Derive, derive, derive!
To L'Hopital.