windows go down without knowing!

sp911

anyone have this happen to them? i'm at work and i get a phone call saying that my windows are open. and it's raining! i know i had them all the way up when i got out of my car, it was misting then. and here 3 hours later they are all the way down. i know if i hold one of the remote buttons down long enough it rolls the windows down. i think it's the stupid "z" ring chain i bought a few weeks back. when it's in my pocket and i'm sitting it probably hits it enough to lower the windows. lol. i sit about 75 feet from my parking spot. hopefully it's nothing else. anyone have similar problems?