You will absolutely learn to love that FUMOTO valve.
I have them on every truck on the place.
I have never had any negative issues with them.
My only concern would be if some knuckle-head other than myself were to have reason to change the oil, they might destroy the valve out of ignorance.
So long as I have say in the matter, no one but me will ever be under there anyway.
It is nigh impossible for a FUMOTO to open accidentally; you are far more likely to lose the factory plug or strip it out.
Our shop is at the intersection of several highways and it is absolutely scary the amount of oil drain-plugs that I find when going to the mail-box.
Big ones, little ones, new-looking ones, and rounded-off beat-up old ones, I find one almost every day.
I don't know what happens to the losers of these plugs, but I would assume that most of their stories don't have happy endings.
As for bullet-proofing a FUMOTO, some FUMOTO dealers offer a "Corbin"-clamp that snaps in the groove, once the handle is latched, and prevents the handle coming out of it's resting place until the Corbin-clamp is first removed.
Myself, I buy the one that has a 3/8 hose-nipple.
I plug a very short piece of 3/8 fuel-hose by clamping a very short 3/8 bolt in the hose, then I clamp this hose onto the nipple.
I do this, not because I don't trust the FUMOTO, but because I want to make it as tamper-proof as possible from would be sabateurs.
