I get some good stories from a retired TW flight attendant with lots of time on the 880. First off, the 880 and 990 were built like tanks, with thicker skins and a special gluing or bonding process that made rivets unnecessary, although Howard Hughes told Convair to put rivets in 'just in case'. Anyhow, my F/A pal recalls a flight in which a passenger told her to look out the window and see a rivet which had popped up from the wing. A bit concerned, she marched off to the cockpit to inform the crew. After explaining the problem, the first officer just shrugged and said, "Don't worry, we don't need 'em"!
In another instance, she was approaching STL after a thunderstorm and on finals it was clear that the plane that had landed before them had hydroplaned and gone off the runway, necessitating a radical go-around right up into the storm cell, including rain, hail and lightning, not to mention roller-coaster turbulence. She says the galley started to dislodge from its mounts, the G forces were so strong, but overall feels that a less sturdy aircraft than the 880 might have been in serious structural trouble. After landing, the 880 was pockmarked with hail damage and had a cracked windshield. In the terminal, they were milling around getting the very shaken passengers to 'come down' from their experience. A little old lady, who had been on this wild ride, tapped my F/A friend and said, "I am just so sorry, I couldn't help it, but I peed in my seat!" and F/A assured her, "Don't worry, so did the captain!". He was standing right behind her and did not see the humor in it.