Following on from the pet peeves thread, let's hear about the times when you get that feeling of getting one up on someone or something.
My other half constantly moans about not putting the toilet seat down, I went into the bathroom this morning and the seat was up. I took great pleasure in pointing this out to her.
I tend to buy a fair bit of stuff from eBay or the pound shop, upon seeing the stuff I buy my partner always says 'you'll never use that'. When on the rare occasion I do have to use it, I always remind her of her previous derision