Probably best to go with the appropriate security tip screwdriver, but since I've always enjoyed this story I'll pass it along here. A friend of mine was doing some work installing or moving some signs on the walls inside of a prison, he had been assigned a helper from the residents of the prison and when he found that some signs had security screws he was going to come back the next day with the proper tools. His helper informed him that if he heated the end of a toothbrush handle with a lighter and then pressed it into the security screw head he would make a custom plastic security driver for that style of screw. I don't know if he did it or not, but the idea, and the fact that the convicts knew about it has always amused me.