auditory paranoia

One of my biggest pet peeves of ALL TIME is when my classmates' cell phones start ringing during class. Or during movies. Or during anytime. Something about a ringing cell phone reminds me of an alarm clock (perhaps the fact that I use mine as one) so the sound raises my hackles instantly. In order to curb my personal desire to chuck my cell phone out the nearest window, I have had mine set on vibrate for awhile (it still rings audibly when I get up at the buttcrack of dawn). Now, in theory, having a cell phone on vibrate makes sense. Or it would if you didn't have super sensitive freaky good hearing, like myself. Typically, I can hear the little bugger buzzing across the room (with the exception of when my mother is calling, selective hearing I guess. jk, ma). Now, I've noticed that I'm tuned into every little buzzing thing wherever I go. Your tv have a lowtone buzz? I'm going to try and answer it. The space heater in your office making a humming noise? Maybe its someone calling. It's beginning to drive me a little bonkers. I need to find a cell phone that alternates quiet little noises but none of them sound like an alarm clock. Cell phone manufacturers, I'm talking to you.