After my parked truck was rear ended by a teenager playing with his radio, I stopped crossing behind and always went to the front. Even if you manage to back step far enough not to get pinned between, shards of plastic and glass fly like bullets in every direction. Kid hit the truck so hard it totally tore off his quarter panel, but all that p1000 did was rock against its brakes. Fortunately I was on the front porch of the house when it hit, otherwise safest place to be would have been at the front of the truck where it would have shielded me from flying debris.