I've had the very nice pleasure of always doing business with providers who would simply drop access to the server when bandwidth had been met or exceeded with

I've had the very nice pleasure of always doing business with providers who would simply drop access to the server when bandwidth had been met or exceeded with my service. But what's odd to me is that I don't often read about other people having the same experience. So... are all of you seriously with hosts that don't shut off access to your servers? I'd rather that happen than suddenly get a bill I can't afford.