I can't BELIEVE you just asked about windows being dangerous, Robin! What timing. Right before we took Airabelle over to the factory last week, I had the galley window open to ventilate while I was using bleach to clean the counters. I didn't open the window all the way, because frankly I am not patient enough to crank them all the way up sometimes.
My sweetie, Jeff, stopped by the trailer after work to help me, and when we were were going 'round the back side to check the rear bumper condition - SMACK!! - he walked right into the open window. Nasty dent on his forehead, accompanied by a bit of blood. I felt soooo bad
I can't think of any way to make the corners less dangerous, but I DO recommend at least opening the windows all the way as that should at least prevent those of us who are shorter from running into them. If your travelmates are taller, perhaps placing a colored bit of tape or something along the edge of the window would be helpful. I would be careful to use something that is easily removed and make sure it does not interfere with the window seal. That, and let folks know that "windows are up!" when you crank them open. If I had only told him, he probably would have been paying closer attention!!
....leaving tomorrow to pick up our girl at the factory - $1700 for the final bill. Will post details upon our return!