Jillaine,
I hate when that happens. I invite one of my big guy friends over for a beer or food. And, oh while you are here, can you be so kind to loosen this for me????? Tilt the head, look up, blink blink...you know the move....
I have heard others use some vice grips or channel locks but you need to pad the wheel with a rag or something so you don't mar it.
Billy has had another outbreak so keep him in your prayers.