Quote from forex-forex:
I bought 200 contracts VMW Feb 2008 70.00 puts yesterday. When I went to close the position I found out that I was using my demo account. 
This is a true story.
man how is that possible? dont they all have the big "DEMO" text blasted all over the screen? sorry for ya loss if it's true.
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I use the below strategy for earning play that's expected to be a mover. Provided this falls into the category of many small losss and 1 big win.
1) Earning report must be very close to current option expiration date, closer the better, 1 day is perfect.
2) Wait throughout the day until the underlying is as close to a strike price(any) as possible. Also the put/call at that strike needs to be reasonably priced.
3) Add up the call + put of the strike, if you still think the underlying will move greater than the sum after earning. Buy both put/call.
4) Right after earning, sell the losing side usually you can salvage a good portion of it. Then let the winning side run until you close based on your normal exit strategy. If the earning is soso and stock is stagnant, i would take a loss and sell both sides.
Dunno the fancy name or any technical option speaks you guys use, but i have done ok doing this if you pick the right stock/timing/strike. As most losses are pretty limited if done correctly.