I understand, but guess what? That means you're leaving yourself open to problems one out of 20 times. Don't do it! Instead of listing the item on eBay, wait a day or two until you have access to the item. That way, you'll avoid receiving negative feedback 100% of the time instead of just 99% of the time. Believe me, I know how it is to be on a roll, but taking some extra time to make sure all of your auctions are perfect is worth it in the long run.
I'm just trying to help.