teach a fish to cook

Dad: I need to clean out your heater filter. It's very dusty.

Me: I can do it myself. You don't have to do it for me.

Dad: No, it is very delicate. You have to brush it very gently [demonstrates slow four-fingered combing motion, like a slow-motion wave goodbye]. With a fan blowing in front of you so the dust is lifted away.

Me: Teach a man to fish, Dad.

Dad: Teach a . . . ? Teach a woman to . . . cook, and she can . . . cook . . . no no, that's a stereotype. Teach a man to cook, and he will know how to cook. [Walking away] Teach a man to cook, and he will cook forever.