I was thinking more along the lines of a customer shutting the mower off to talk to a neighbor, and when he goes to restart, nothing happens. So he takes the battery out and goes to Walmart and gets a new battery, but still doesn't do anything. Borrows the neighbors trailer, and gets the neighbor to help him push it up on the trailer, so he can haul it to my shop. Customer shows up and I just on the mower before even unstrapping it and start the mower a few times.
Found the reason for the mower not starting was the customer and the neighbor both didn't push the brake pedal down to start the mower.