I was flying with my wife in the mighty C-150, down through Virginia, many years ago. On the radio, I heard a Coast Guard C-130 Hercules reporting an engine failure, while they were returning to their base. This did not seem too concerning to anyone. Then their base went below limits, so they would divert to Roanoke - Hey, that's where we were headed!
As we both worked our way toward the same airport, the Herc pilot's voice took a whole new tone of alarm, he declared an emergency, reporting he'd just lost a second engine. He sounded really scared on the radio. A lot of paniced chatter happened over the following five or so minutes....
He landed a minute before me, and the reason for his alarm became obvious to me as he taxiied across in front of me....
It appears that number 2 would not feather after it quit!
(Try as I might, Photobucket refuses to resize this photo - sorry!)