I'll also add other things that make me laugh starting with each letter.
Letter N is for Naps, and how you shouldn't take them while driving. This one will need a little explaining. I had a scare last month when my brother was driving home from work sick. While driving home, he passed out and totaled his truck. Luckily, he came out bruised, but not broken. Also, luckily, Ducketts have good senses of humor and thick skin.
The letter N is for the impossibility of plugging stuff in at Night.
The letter N is for the Nine lives that cats have.
The letter N is for Ninjas, though this could have been filed away with the letter F.