What's the word for saying that you're bad at something so you won't have to do it?

A term for getting out of a task by claiming your inability to do it. If I remember correctly the word has 'impotence' in it.

For example:

"John could you cook us dinner?"

"Me? No, I'm really bad at cooking.. you want Anny to do it"

"John, stop {claiming inability} and get on with it!"

I'm looking for a word that describes what John just did.


"Pleading incompetence" should do it.

incompetence

noun the quality or condition of being incompetent; lack of ability.

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