I think this is another one Paul co-wrote.
Eskimo’s supposed to be breaking Lance’s lightbulb, there, not smashing a plate over his head.
My favorite part of this strip is the slowly rising suds. And look how earnestly Lance is squeezing that soap bottle in the first panel!
The Script
ESKIMO (as Lance squeezes dish soap into the sink): You don’t need that much soap. That’s crazy!
(They continue doing the dishes and suddenly Lance gets a light bulb over his head.)
LANCE: You know what’s the great thing about visiting mental institutions? It is they who are mad, and we who are sane.
(Eskimo smashes the light bulb.)