Knowing this thread exists, here's my little story from yesterday. Tram from Epcot parking lot. Group of teens from Mexico, first they did a chant, then they pulled out the selfie stick and stuck it way out of the tram on the left side about 15 seconds before the tram pulled away. Tram started, camera fell off, plop, into the roadway. They of course, start screaming and standing up, while the guests behind them kept saying, they won't stop, and the CM is using the speaker to tell them to sit down. We get to the front, and 2 of the girls start sprinting full speed to go back. Not hearing their other friends telling them to wait, because a truck has arrived to give them assistance. I didn't stick around long enough to find out if the truck already had the camera in it, or just to let them know that someone was bringing it.
But when I saw them stick it way out, I started laughing to myself because of knowing the new rules and how apparently necessary they are. And I just had a feeling that the camera would pop off at the first movement of the tram. But maybe their group of 10, learned a little something about not securing their cargo.