Lobster I once made a good profit on the exact scenario you just explained. It was kind of laughable I quickly was trying to close my position (long calls) into a short covering panic rally , canceled the order then resent it at a higher limit. It turned out that I had not canceled quick enough and actually sold on the first order. My second order for the same quantity went through now accidently (short calls) The volatility soon dropped like a rock I quickly bought back the calls. "profitable accident" 
