Years ago I lost quite a few tins travelling in the high country from wear. Swapped over to stubbies and the problem was solved.
On our Kimberley trip I tried to buy more stubbies in Kununurra, and after the guy behind the counter stopped laughing, explained they only sold tinnies. Purchased a couple of 30 packs and headed off to the GRR. The packs just sat on the tray and all I did was stuff a towel in the carton as we used them. I really expected to lose quite a few, but was very pleasantly surprised to not lose a one. Go figure.
Back to the stubbies as soon as I could so my mo doesn't get caught in the ring-thing, much better.