I have heard of several popping out on a corner, and seen 1 or 2. It normally is due to poor construction and/or installation, ie. The hole is too big for the glass, wrong gasket used, etc. You won't have this problem with your Itasca as Winnebago/Itasca windshields are glued into a steel frame that is part of the steel cage around the driving compartment. In addition, your coach probably has an automatic leveling system. Even if you choose to run the levelers manually (or if it is a manual system) the jacks are tied on pairs side to side or front to rear. You cannot operate one jack by itself ...they only move in pairs.
Paul (KE5LXU) ...was fulltimin', now parttimin'
'03 Winnebago UA 40e / '05 Honda Odyssey toad