The stupidest thing I've ever heard about my truck is as follows:
I'm driving on base and stop to show the MP my ID as everyone has to. I had the scanner running and was datalogging. The MP, Sgt. Simpson, asked me "what is that?". I replied "a scanner". "What does that do?" he asked. I gave him a brief description of what a scanner is and does. His response.........Well, I listen to my engine
I don't think I've ever tried so hard not to laugh. Then, after we drove away, my buddy in the passenger seat said "his first name must have been Homer.