I used to be married to a special forces soldier, he was manly, brave, and a decorated hero. He could carry the house on his back whilst fighting off terrorists and a zombie invasion. I accidentally bought these pens and put them in his backpack for pen type emergencies when he was out in the field. Now he is called Agnes, he lives in a commune in Brighton, is a professional mime artist and knits underwear out of cat fur. The divorce cost me my home, my in-house car mechanic and D I Y expert and the person who could get the plates down from the top shelf, I am old and bitter and my life is over, all because of these pens. Heed my warning people of the world, these pens ruin lives, do not touch them, do not even be in the same house as them and certainly do not put them in your husband's backpack. If I can save one other person then my sacrifice will have been worth it. And please see Amazon for my ex-husbands range of cat fur underwear.