I've done a few with the toothpick and one of the screwdrivers in a Swiss Army Knife. Someone ran out the fire door at work and we didn't have a key to turn off the alarm. I had pick the alarm box open and pull the wires. We were actually able to re-lock the fire door and reset the alarm. That same toothpick was used to set the gap in the points on VW Bug on several occasions. It didn't run well, but it got me home.

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A Nerd can figure out how long it will take the original Enterprise traveling at warp 6.5 to travel from Regulus to Antares.
A Geek will think he can use that to pick up a girl in a bar.
A Dork knows he can't pick up the girl with it, but will hang around for hours anyway, just in case she asks.
She might. You never know.