Yeah, we did that, too, as we were touring a bunch of trailers on a dealer's lot. The stabilizers were down, but not firmly and tightly down. So when we went to the back it tipped just enough to lift the tongue jack a bit. But the tongue jack was supported by blocks, and it moved enough to fall off the blocks as we went back forward. You'd think the dealerships would know how to set up the stabilizers to prevent tipping.