Pickup Truck Full of Blondes 

Four blondes went to the bar in their pick-up.
Three sat up in the cab and one sat in the bed of 
the truck. The three blondes are in the bar for 
about an hour before the fourth finally comes in, 
looking frustrated. 
They ask, 'What took you so long?'
She responds, 'Well, I had trouble getting the 
tail gate open!'