Niconico user A0 invented an alarm system for guys who tend to forget to zip up their fly, named “Chakku Shimewasure Boushi Debaisu”(device to prevent from forgetting to close your fly). http://www.nicovideo.jp/watch/nm16976797 (The first one minutes explains how to make it, the demo starts around 1:00.) By this, you will notice that your fly is… Continue reading Your Fly Can’t Be Opened – Open Zipper Alert System