Fellow artists would know.
What about it?
Got this while tattooing one of my best friends. They supported me in the beginning of my journey to becoming a professional artist. When it happened, I freaked out. (And of course replaced the cartridge) It never happened again, because I thankfully learned this lesson with a responsible friend.
The worst part about it, is that it became a memorial tattoo that I never wanted. I miss the shit out of her.