no not at all!!
Hold your breath and pin (not really so don't do it)
Yes, having a hypoplastic 12th rib certainly can cause pain around the ribcage. While this is not painful for everyone, it can cause pressure on the surrounding tissue and create a kind of bruising sensation.
Heck yes they do! I know from personal experience that it is one of the most painful things you can experience, aside from tattooing eyeliner on and childbirth.
Ferrets do have a ribcage
Pain is really Nagato.
Hand Tapping or simply tattooing by hand or tattooing without electricity
it could be as minor as a calcium deposit that will go away on its own, or it could be something as severe as a tumor. You should have a vet take a look at it!
It's not really painful but it makes life a lot harder than for a "normal person" and makes you really tired.
that means your ribcage is open and is showing
The ribcage doesn't include any long bones.
Regulations for tattooing vary by state and city. Check your local government.
What voltage should you you have your power box on when tattooing