Yes, there definately needs to be a do not touch sign. Some people might think its rude to come just come out and say "don't touch my stuff", but when theres a kid who just goes around touching everything and trying to pull triggers on the guns and make the RF's go down then it needs to be said. Maybe there should also be a not for sale sign, too.
Oh, and a foam floor under and around the table
Whenever I heard a thunk of something hitting the floor my heart skipped a beat.