Actually, the net is full of stories of people who had the stuff explode without these drastic changes, or small changes in temp, like cooling on the counter out of the oven when the contents remain hot but the outside begins to cool. There are stories of them exploding in the dishdrainers, etc. too. I think the older borosilicate ones are less likely to, but still do sometimes.

On the Le Creuset, anyone know of what is used to produce the different colors? I know LC is known for the great colors and I like that too, but wanna make sure whatever they use to color the enamel is safe. I think that they used to use cadmium in the reds before a certain date, but stopped after like 1990? I tried looking but all I found was info on the cadmium and that they stopped using it, some say in the '70s, but others say '90s.