This has been a very entertaining read! Most of these ideas sound fun as hell! Here is how the pro's eliminate a ground nest...at late evening when the S.O.B.'s are all in the nest, prepare a 50/50% mix of dish soap and water, at least a couple gallons. Use the cheap soap, it doesn't matter. Throw a wet towel over the entrance to trap the Yellow jackets, careful there may be multiple locations. Carefully cut a small slit in the towel at the entrance, jam a funnel in it and start pouring the mixture into the nest until it is full. The soap suffocates the critters, and you're done. Stomp a golf ball into the hole(s) for good measure. I actually had an exterminator explain this process to me from a reputable company, used it and it worked like a charm.
