Imagine an exterminator installing rat food instead of poison:

Home Owner: What the fuck are you doing?  Is that that Gouda?

Exterminator: I ran out of Swiss.

Home Owner: Why are you-where are the traps?!

Exterminator:  Oh...sorry there must be some confusion.  Did you say you want more rats?

Home Owner: What-the-I can't...who the fuck wants rats?

Exterminator: Now that you mention it...I can't think of a person who would want more rats.  

​Home Owner: Get the fuck out of my house.

Exterminator: Ah yes my confusion was linked to stupidity.

Home Owner: Oh SHIT a MOUSE EEEEEEEEEEEEEEEK!

Exterminator: You sure dooooo don't like rats.

Home Owner: You guys hiring?