Duck! Since you first posted in March, you've probably figured that out. My first time in the 145RB, I must have hit my head 20 times. We learned to "pad" most of the surfaces, but I've also learned, in two years, to move more slowly and not try to cut corners. I'm still learning not to leave doors open while I'm washing dishes, and to latch the side baggage door when retrieving tools. It's still a nice little camper, and we have had a lot of good times in it. Oh, and my wife has rigged up mosquito netting on the canopy.