Stop in for a cup of coffee
They are pretty sturdy and layed. We had one plane that constantly would crack the outside part of the glass when the NESA was on (Heats the glass internally. Think the rule was it is grounded if the inside part breaks/cracks. There was one I checked out for battle damge that was pretty shot up by prob AK's. The pilots vent window got hit and the bullet was still in the window. Sure, the pilot stained himself. And I would have given him the glass as a war trophy. No idea if they did or not different unit. I think I counted 28 holes in it.