I will tell you something annoying. One time back in school, my mate set up this pen next to where you would sign in. The room at the time was full of people i knew, 30, 40 odd people. I went up to the signing in book and picked up the pen and clicked it. It sent an electric shock into my finger, and my imidiate reaction was to throw the pen. I through the pen straight at a teacher, who then got an electric shock from the pen. All in all i had to explain about the pen and got detention. NOW THAT IS ANNOYING!!