1x20 - The Melancholy of Haruhi-chan Suzumiya

Ryoko and Kimidori try to pull a prank on Yuki, but she is totally oblivious. Whilst trying to get Kimidori out from under a fridge following one of their attempts, he bursts, devastating Ryoko. It turns out, she had been punk'd by both Yuki and Kimidori.