I knew not to agree to it, but a mother and two KITTLE 2-year old kids asked please can they climb up on the Farmall H? I said yes, but first I have to check everything, remove the battery disconnect, shut off fuel, lock the brakes, put it in gear, etc. Mom put the Kid up on the seat, he started to go zoom-zoom, pulling the steering wheel, hitting everything.... hit the belly pump lever, knocked it down, and the rear carrier I had left hoisted up in the air DROPPED!!! bang down. Nobody near, the mother didn't notice, the other kid thankfully was not there. My Lord, what could have happened. Never again, and I KNEW not to agree to it.