Something that the QRH should direct pilots to ... check the CB panels. We've had several events here and there where checking the panel, calling maintenance, resetting if appropriate, then writing up, would have saved a lot of time and forehead slapping after the fact.

My most amusing mechanical malady in commercial service was at a regional airline. As I greeted passengers aboard a lady pointed at the flight deck and said "is your airplane on fire?" ... "Why, yes it is. Lets go back up to the terminal ..." (The silly Brazillians put the Generator Control Units beside the First Officer's seat. The phenolic block which held the induction coil for the Ammeter melted and made lots of smoke, but no real harm at the gate.)