Not to highjack your thread Denise, but what about when shooting video? I was asked to set up a tripod and record video of a friend's wedding this weekend:

Me: "Yeah, if you just want it set up in one spot, I can do that during the ceremony."
Friend: "Great! Thanks for doing that. It should be a very quick ceremony. Maybe 20 minutes tops."
Me: "Wow, that's quick."
Friend: "Well it's going to be so hot."
Me: "Oh, your ceremony is outside?"

So, when I arrived to the location, I was disappointed to find every spot I could set up had zero shade. I was worried about condensation (but didn't run into any of that) and overheating. I set up on the tripod in the direct 105F sun, crossed my fingers, and hoped for the best. I was sitting in a chair about 15 feet from the camera and about half way through the ceremony, I heard a faint shutter click. I glanced over, expecting to see the actual wedding photographer snapping some shots, but no, it was my video recording 60D closing the shutter. Afterwards, I checked the vitals and it all looked fine - battery had juice, memory card had space. Did the camera shut itself down to prevent overheating?