I read this story ages ago. A man goes to a drive-thru frozen custard shop, gets a pint of chocolate custard, takes it home, starts eating.. finds a finger inside.

Initially it was the "Finger! ew!" aspect that grabbed my attention, but I've just realised..

The man went to a *custard* shop.

A shop where they sell *custard*.

Frozen custard.

Frozen, chocolate, custard.

They have shops for this?

Even more bizarre - it's a drive-through! You don't even have to get out of your car to get your daily dose of fatty badness!