What happens next?

There is a man on a horse waiting for the time to get going to start. once the gates

Available choices:
+ open, they start going and the in the back row looks scared..
+ open a cow starts running and the man on the horse chases after it with a tassel..
+ open, it begins to rain and the horse runs and jumps over obstacles..
+ suddenly open, he takes off running and jumps over the gate..
open a cow starts running and the man on the horse chases after it with a tassel.