I imagine that this question has been asked, but I could not find the answer, so I'll ask it:
I just created an icosphere and tried to increase the number of subdivisions to 5. But, whoops, I entered 25! Now Blender is churning away on a difficult task that I would rather not be completed. Is there anyway to "Undo" a process while Blender is still "thinking about it"? Like a "Control-C" equivalent? Or, do I just need to kill the whole Blender application?