Originally Posted by N9373M

In 27 years of domestic and international DAL travel, I've never seen that. I'd probably mutter, tool, under my breath - or engage in a more toolish "I'm a pilot too!"

Which reminds me of another story:

Flying on a DAL 737 (ICT-ATL) where I can see the engines. I notice mx putting in oil. During the entire flight, I notice a nice brown streak running down the side of the engine. I contact the FA. She says, "nothing to worry about", I tell her I'm a pilot and that leaking oil is usually not a good thing". Her response - "do you fly a 737?" I kinda kept quiet after that, but a "I'll let the CA know, or yes we are aware and are monitoring" would have gone a lot further for customer service.