I had fun working with my Grandfather, too. He wasn't the most patient, and became excited easily, but he could be funny. That was back in the 1950's, and he was an antique dealer. He used to go from Michigan to Wisconsin and pick up a load of buggies and other horse drawn vehicles. He would remove the wheels and anything loose and tie the wheels up to the sides of the truck, and put the shafts and seats on a rack over the cab. He would tip the buggies up on end and tie them together. I would help him undo it all and put them back together. There were no Interstate highways then, either, it was small towns, Chicago, and stop lights all the way. I don't have any grandkids, or I would teach them some pranks to play on their parents, and show them how to rebuild engines.