Hey, that's a good idea, the Gorilla Glue. Thanks!

I do have a Pelican case (thick, cutproof plastic) I occasionally take on dive trips - only thing is, it's pretty heavy. I also have a hard-sided Porter case that I put a bag strap around (also with a TSA-unfriendly lock). Neither of these have a zipper, which IMO is the weakest point on a standard 22".

I really do need to get a backpack with zipper pulls that are lockable. The ones I have now close with only nylon cords, which would take three seconds to cut through.

In any event I figure anyone determined will get through my locks. Just trying to prevent the surreptitious snatch 'n grab while my stuff lies on the X-ray belt and I'm trapped in some netherworld waiting for my grope.

The most important point here, IMO: never, under any circumstances, put anything loose into the bin or into one of those doggie bowls, especially if you're planning on opting out.