The footage, captured by security cameras at the Winter Haven bus terminal in Florida, shows the man get out of the bus as the doors close.
According to the bus driver, the man tried to re-board but was then told he would have to pay an additional $2 to transfer destination. Unfair? Maybe. But definitely not worth a concussion.
The man was so aggravated that he then head-butts the bus which, surprise surprise, does not go well for him as he ends up collapsing on the sidewalk.
The bus driver told Raw Story that the impact shattered the glass on the doors a little. So at least he managed to do some damage.