2 Men Were Driving...

2 men were driving down a road when they saw a farm to their right. The farm had a field that was filled with sheep. One of the sheep had its head stuck in the fence. The driver of the car says to the passenger "watch this." He then proceeds to climb over the fence and pleasures the sheep. Upon returning to the car, he says to the passenger "I bet you twenty dollars you can't do that." The passenger quickly retorts "Yes I can! Watch me." So the passenger goes, climbs over the fence, and sticks his head through the fence.