I have a half sleeve and some on my legs and I intend to fill up the rest of my right arm and full sleeve on my left arm as well as fill up my legs. I worry about it, but not near as much as I used to. It's pretty true that anything can be touched up or redone. Also, just give it a couple weeks after you have the work done so it heals up properly, especially if it's on your legs.

Only thing I still worry about is sun burns. I worry about those more than wrecks.