Preparing to Unroll Hay

What happens here

The farmer prepares to unroll a hay bale for the cattle. He backs up his red Honda Foreman 500 ATV, which is equipped with a bale unroller attachment, to one of the large round hay bales. He manually attaches the bale to the unroller. He explains that traditionally, he would use a hammer to secure a pin, but his hammer is currently half a mile away, so he uses his foot to kick the pin into place.

Goal: Attach the hay unroller to the ATV and prepare a hay bale for distribution.