Noises

I said to my two-year-old son, "Now, what noise does a cat make?"

"Miaow!"

"Good, but do you know what noise a dog makes?"

"Woof woof!"

"That's right! Now tell me what noise a cow makes?"

Spoiler:

"David, if you even think about going out to that bl**dy pub with your friends then you can forget about ever being let back in this house!"

That's my boy.