The joke I came up with as a 5 year old I like telling this story whenever I feel like it, for some reason I thought this short joke was super funny when I was 5, I'm 35 now. Here is goes: Toby wanted to send a letter to Mike, he carefully put it into an envelope, stamped it and walked to the nearest post box to drop it off, when he arrived there, he saw Mike and was so excited, he told him that he had a letter for him, that he'd send him, and then dropped it in front of Mike into the box and walked away.