Only takes one time to fix stoopid... Years ago, before my basement was finished (living space) I used to bring the Valk in for the winter (exposed basement with wide patio doors). It was nice working on her in the 65 degree comfort, rather than the freezing temps of the garage.
The year I got my Custom wheels, winter down time was the time for mounting them and a few other 'projects'. Mounted the jack adapter to the under side, positioned the Valk just so, and jacked her up to the perfect hight to remove both wheels (was so perfectly balanced, I never bothered to strap her down)

I take the new wheels and new tires to the dealer for mounting, and maybe a day or two after removing the original wheels, I head back down to the basement to do some other work on my baby... What I saw, put a lump in my throat... The bike had tipped/slid forward off the jack, and was resting on the bottom of the fork tubes, with about 1/2" of the jack adapter still keeping her 'level' on the jack

(Remember, no wheels on front or back). Coulda been sooo much worse

Called my brother to come over (big strong dude), and when he did, we managed to lift the Valk by the crash bars, as my son repositioned the jack under the bike... Needless to say, strapping the bike down is now a priority whenever she is on the jack

Like Bigguy said... We're unique, in our own way.
Black Dog