The reason it sticks so well to your hands is that it cures by moisture. Actually, if there is minute latent moisture on the surface, the paint will physically draw itself in even tighter to the surface (don't read this as okay to paint when damp). The same theory works on skin. Since your skin has moisture, the paint almost chases the moisture in from the top of the skin into the pores of the skin. About the only things that may works to speed removal is to wash with hot, hot, hot soapy water as quickly as possible. Otherwise, as noted above, you're wearing it.
One time we had sold some to a gentleman who ended up with leftover material and put it in his garage. Kid comes along, spills it all over his body - turned him into the tin man. Rushed him to the hospital, he ended up just fine, just silver (the color of the paint). For a couple of weeks.
Remember to keep your lids lids tightly closed and try and open only when needed. The moisture in the air will kick the stuff over in the can if you open and close the cans often enough.