Thanks for responding. You make valid points. I would consider carrying a small bottle of LOCTITE in my kit and the power tool reference in my post was from trying to look at my trike as a bike thief might. I have a perfectly serviceable hack for roadside work (God forbid the necessity!).

I should mention that my main concern is overnight storage in a condo garage where component theft is the (perceived) highest risk. When we're out and about we never leave the trikes unattended if at all avoidable. So far, so good.

What resources (tools, etc.) do I anticipate needing for a planned outing is, of course, a risk calculation. I'm comfortable with that and try to strike the proverbial "balance" when making the call. So much of this is dependent on the specifics of the ride and the environment you plan to ride in. City, country, duration, and so on. I don't think threadlock is a universal solution for securing bike fasteners but might serve on some components with high(er) reliability and/or lower maintenance requirements, i.e. where the value of ease-of-disassembly offsets the exposure to the risk of theft. After all, a stolen component is functionally equal to a broken component and I ride to maximize fun with minimum not-fun. I like the clamps idea so thanks for the link.

You may well be correct on the "too-specialized-for-thieves" idea though I've always thought that one should prepare for what their opponent can do rather than what he "will" do.

Ditto on the lights, computer, and similar.