One of our camping trips started out that way -- all hooked up and ready to roll out at 7am. Kids and friends all packed in the van along dogs to get dropped at the boarder on the way out. Drop it in drive and immediately slipped / sunk a few inches of rain softened grass where I had parked near the house to load up the night before. Add in the slight up hill slope and we where not going anywhere in a 2wd van. My teenage daughter made me proud when I said "Get the truck backed up in front of the van - but stay up on the hard driveway". I ran and grabbed the tow strap from the back of the van (thought something like this might happen). She knew where the 4x4 switch was and how to gave it a tug (not too much gas) while I drove the van.....truck parked and all locked up and on our way in about 5 minutes...I was a proud dad and her boyfriend was really impressed that we worked like pit-crew.