So, the problem is this. I'm doing two shows for a new company in my town. Our amphitheatre is completely open, and it's always windy here. Yesterday they were loading in the first set of the season (not one of my shows) and one of the set pieces was on it's wagon and just blew right off the edge of the stage, into the orchestra pit. When I was talking to the other SM (who is also an actor) about why this happened he told me that last year they would literally be riding the barn from Oklahoma! across the stage while acting. The wagons don't have breaks and the stage "floor" is solid cement so we can't screw them down. They try to hold the set pieces in place with wedges and sandbags. My question is, when it comes to my shows, should I fight for breaks on the wagons for safety or is this a battle that I shouldn't start at risk of offending the set designer/TD? And, how should I bring this up? Should I wait for my show or should I try to convince the other SM to fight it too?