And actually difficult to believe. I bred 1 litter of german shorthaired pointers. Breed standard calls for tails to be docked at 3 days old. The night previous to taking them to the vet to have tails done I carefully marked in black sharpie pen where the tails were to be docked. The next morning I went to the whelping box to check on everyone and mom had completely licked clean every speck of ink.