Just got my first iPhone (4s - and loving it). Treating it very carefully, but got caught in a light shower this morning. The phone didn't get wet, but a tiny drop of water did manage to fall on the screen at where the edge of the home button meets. I wiped it immediately. should I be worried with moisture getting inside the home button?? Probably over worrying, but just wanted to check?? How careful to you have to be? I'm assuming that everday moisture,sweat from hand and face must get on/in the nooks and crannies? thx!