When you go back in, thank him for that. I've heard that it's not good to tattoo them because you wanna be able to see if the mole changes color. However, that didn't stop a certain someone from blasting right over a raised mole on my arm. It stung like you would not believe and I bled like a stuck pig (stuck Hogg?). I have moles all over my back that didn't get tattooed over. Luckily, my backpiece is a snake with a million dots, so it worked out well.