I carry mine "upside down" because otherwise I perform an appendectomy whenever I wear it!
Maybe I should wear it more often and encourage myself to lose some weight!

It's actually a pretty handy little tool. It's a great companion to another tool, and with the auto related tools, it's a great thing to keep in the car. I would suggest that you also keep a nice set of mechanic's gloves with them as those pointy ends can leave nasty marks on your hands during high pressure use.
Def