In 2006 astronaut Sunita Williams casually loses a camera to the void of space during a Discovery space shuttle mission. Houston: "Uh, Suny, your camera is behind you. I hope it's tethered because it looks like it's passing underneath the arm and reflector." Williams: "It's not. It came off of the bracket. The bracket came undone." Houston: "Okay, we see that." Shouldn't something like that be a concern that the astronaut mentions to somebody instead of nonchalantly telling them after Earth based observers noticed it? I suspect that some training guidelines were reviewed after this mission.