Dirty fork

[rebbonk]

I sat down to dinner and noticed that my fork was dirty.

I said to my wife, "This fork is disgusting, it's got old food stuck on it."

Well, she went crazy.

"How often do you do the washing up then?" she shouted.

I replied, "Never."

So she said, "Exactly, I always do it!"

I looked at her a bit puzzled and said,

Spoiler:

"Well surely you should be good enough by now not to leave the cutlery dirty"