I did a clean burn last night to get some of the gunk off that has accumulated in two year's use. I filled the fire box with lump, and let it burn itself out with the bottom vent wide open and no cover on top of the dome. It got to about 700-800 degrees for a while, then slowly dropped to about 300 before I went to bed. This morning when I tried to open it to check it, it was stuck shut. Now I can't open the egg! I figure my gaskets are toast and will have to be replaced, but the big problem now is how do I open it? Has this happened to anyone before?