valve tire stem tool substitute?

[ak_petey]

I do need to pick one up.. they are pretty cheap.....but I did not have one when I needed one today!
I remember from an off road wheeler magazine article that someone wrote about using something other than a valve stem screw driver tool (that happened to be very common) to tighten up a valve stem screw...or remove a buddies air from tires as a prank.

This info could be useful for when ya forget to bring your valve stem tool or cant find one before and after airing down/up at the trail head. :clap:

post all and any good ideas!