I was wondering if the razors in pencil sharpeners would set off the wand thingy they swirl over you. I am going on a trip soon via airway and I am an artist you see. I always keep a gradient 2h pencil tucked behind my ear with the point away from my forehead and a sharpener in my right pocket (by habit now I suppose) and I wanted to know if I would have to remove my sharpener if the wand thingy they use goes over me. Would it detect it? Thank you in advanced.