Accidental Tatoo

Just a word of advice when using a clicky pen. When the pen tip is already out, you do not need to push down on the clicker. You certainly don't need to hold the pen backwards and jam your thumb down on the pen tip. Doing so will not only hurt a great deal, but will deposit some ink deep subcutaneously, giving you a little tatoo-esque spot on your thumb. I dont' recommend it.