We leave our pets in the RV. I like the idea of a sticker to notify emergency personnel that there are animals on board. We come back for afternoon rests so haven't had a problem.
My funny story. Our kids were 8 years old when we got our first RV. We were in Galveston, Texas and I made an off comment that I hoped the camper didn't catch on fire. We left for Moody Gardens and the whole time we were there, my son was ready to leave, anxious and not having a good time. He finally told us why. He heard my comment about the camper catching on fire and was worried about our dog Buster...so he opened the emergency window exit so Buster could leave in case of a fire...only to get to Moody Gardens and realize that Buster could get out and run away. He was thinkin' just not thinkin' all the way.