I found out that my parents' had a bike horn put on my (road)racing bike that I use to get everywhere. I have already found that it is causing pain in my hips from how wide it is.

Also, Has anyone experienced a bike horn becoming stuck in the 'on' position? While mine hasn't done that. I will rarely use it, if at all. Because, It is extremely loud. It startled me the first time I tried it, not in traffic and from a standing position. I would think that it may startle some motorists'.