Peter - I always thought that the scene you mentioned in "Raiders" was a tribute of sorts to some of the escapes that Jack Armstrong the All American Boy made on the radio. Once on a Friday the writers got him into an impossible situation { On a ledge in a pit with the enemy above and snakes at the bottom }. They couldn't think of a way to get him out so the only thing they could do on Monday was start off with "After Jack escaped....."

What my wife loves is in a movie like Twister when someone is in danger and the chacter yells "Run !!" As if the option is to stay put and die.