Our neighbors in the campground were pulling out this morning and we noticed that their tailgate was down and they were ready to pull out. Went over to let them know and found out that they tow like ...
A couple of weeks ago I heard the dreaded crunch from an Rv'er that forgot to put his tailgate down (backed into the 5ver pin). Maybe your owner is skeert of forgetting to lower the tailgate for hook-up / un-hook ???
On a related note... saw at least 3 5ver's (with the crank-up antenna) in the "up" position...as they were checking out.
I stopped notifying folks as it seems well-intentioned intervention is rarely welcomed. Just wave.