What have you laughed at or found amusing, but cannot explain why you found it funny?

There is a GEICO commercial on now that I cannot help laughing at. Maxwell, the pig, is sitting poolside and checks the balance due on his premium using his phone. He is told that his premium is paid in full and he goes back to his music. He sits there saying, “Boots and pants and boots and pants and boots and pants,” to the beat of the music.

For some reason that I cannot discern, this makes me laugh. A friend suggested that it was the look on the face of the lady next to him, but I hadn’t even noticed her until he pointed it out. I don’t think it’s funny until he gets to the “boots and pants” part of the commercial.

Is there anything that makes you laugh, chuckle, snort or guffaw for a reason that you can’t understand?