It happens to the best of us, and it will most likely happen to all of us sometime in our driving lifetime. You run over a nail, it punctures your tire and you get a flat. While certainly this falls into the realm of “slightly annoying” to “moderately frustrating” depending on the circumstances, there is a quick solution. You may even be able to take care of it yourself!
Locate the nail by inspecting the tread of the tire. If you cannot find the nail, you may need to remove the tire and submerge it in water. The water will push air bubbles out of the puncture and you will then be able to patch it.
Clean the punctured area by pushing the rasp tool through the hole. A rasp tool is a metal file and it not only cleans out the hole but also creates rougher edges to help the hole seal better to the plug.
Pull the insertion tool straight out of the tire. This should leave the plug firmly in the tire as intended.