Mysteries of RV design

noteven wrote:
Have fun posting your mysteries...

I’ll start - my circa 2018 truck camper has a fancy stainless steel microwave/range vent/range light unit. The range vent lid must be opened and closed by moving 2 little plastic tits from the outside, while holding the lid closed. It is about 10 foot off the ground when the camper is on the truck.

My 1989 Fleetwood trailer had a vent hood that was opened and closed by a control from inside.

and those cheap little teats have a bad habit of breaking off. Off the ground 10 feet (most likely about 8 is a non issue with me. I always carry a 3 step folding mini ladder. Got to be careful, they break right off.