I have often heard that CF Cards are pretty indestructible. Well, here's a new story to add to that. I was at my computer this morning and heard a chewing noise. Somehow a year old rescue Maltese-Poodle had found an old (really old - I have no idea where he found it) 256 KB CF card and was chewing on it. I rescued the card and it still works...
I don't know if the same would be true of one of my two big goldendoodles (one mine and one foster) had been doing the chewing. Their jaws are a lot stronger. However, I am not going to test the card in their jaws.