stuck in my head

So, now I can't stop thinking about when Tom says "Don't yoooou belieeeeve iiiit" in one of the old Tom and Jerry episodes. Kevin reminded me of it a few days ago and its stuck in my head. I keep laughing to myself, because its so weird how he says it.
Here is the sound clip: http://www.tomandjerryonline.com/sounds/believe.wav

Here is a link to the actual "Missing Mouse" episode where he first says it... http://www.netwalk.com/~jazzer350/mqtandj.WMV