Honestly, I've only been bitten by hatchlings, which leave nothing remarkable behind to photograph

Not that I'm complaining at all LOL.
I have been bitten by my old iguana ( I'd have to look at my cd's and see if I have the pics still), she got me twice... both times I should have gotten stiches
Been bit by my leo's and beardies from time to time. The beardies, it's a case of me holding the worm and them being off their CHOMP shot. Leo's, mainly those ferouscious hatchlings
Promise got me once ( my BRB), but it was just a little nip.... nothing my old camera would have picked up.
But I do like seeing the bite pics. I laugh at the engulfing of fingers... I've had hatchlings do it, and never a camera close by.