Bill, An excellent lesson story.
Too many jokers around who would think that was hilarious. Like running your landing gear out with the rear stabs down buckling them; or pulling the 5th wheel disconnect lever while you are in having lunch.
Anything you can do to limit potential disasters is a good idea.
Paranoia is not unwarranted if they really ARE out to get you.
Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW