Whoopee Cushions?

Excuse me sir, can you tell me where you keep your Whoopee Cushions?

Oh yes, you'll find those over in the wine section.

Wait, what?!? 
First of all, who exactly is in the market for a Whoppee Cushion? 
And secondly, why would anyone expect to find them on display in the wine section of the grocery store?!

I wonder if anyone has ever walked up to the cash with a bottle of wine and a Whoppee Cushion? Just those two items, nothing else.
Do they figure it might be an impulse purchase?

Well, guess ya never know...