Naw - certainly neither of those - as there's no "secret" to it. If someone wants or needs a paw tattoo, I'd think something that could be played off to even someone suspicious, so no pawprints in mounting positions. More like, something on the arm or leg. Or, if you have to have them in that spot, then downgrade to one paw. You need not tell the entire story, available to anyone. If they're zoo, they'll get it (or will suspect, and will ask about it). And you should have a story for the normies: "That's for my dog, X, who passed away back in '05." or "Those dogs are my heart, and I love them. This way they are with me all the time." But that's just me.