The least painful way to remove chest hair is to carefully shave it off with a razor blade. If you are looking for a longer lasting result and can tolerate pain briefly, you can wax it off with a home waxing kit, or at a salon. For permanent hair removal, you can have it removed with a laser.
The least painful way would be to shaver. A shaver is much better than waxing because waxing can be very painful. When you wax it will make you feel like your skin ripped apart.
Radio frequency also called Intense Pulsed Light (IPL) is the most effective, the least painful and the fastest way of removing hair amongst all existing Hair removal systems. It uses a bright light flash combined with a flow of current within the skin. Reference: http://usdoctor.com
I should think that ear piercing is the least painful
boxers least regular underwear very painful i know
"Least Cubic Method" Also called "Generalized the Least Square Method", is new Method of data regression.
Generalized Least Square Method also called Least Cubic Method
Ring Topology is least affected by addition or removal of nodes
Most say that their navel and ear were the least painful but it differs from person to person and their level for pain tolerance.
The regular wedgie
Generalized Least Square Method also called Least Cubic Method
There had to be, at least, a million dollars inside the chest.
Pricking one's fingers is the most efficient and least painful method of checking one's blood sugar. However, it should not be causing lasting or noticeable pain. I suggest speaking to your doctor.