[sm0ke]

If you're saying what I think you're saying, you're worried about people coming to the casino to jump out at people who are coming in or waiting around outside.

1) Don't stand around outside advertising your presence.
2) There's a 3 second timer to get out OR into the casino. So, if you're entering, the other person would have to get on the exit pad before you stepped on the entry pad. Well before.

This, not to mention if you're hanging around outside of the casino out of the protection of the town guards and you see people in the casino you're just asking to die, there pretty much provoking you to come out at that point so in the end whose fault is it really?