Pumping the Pump

Bill and Hillary are out driving in the country near Hillary`s hometown They are low on fuel,
 so Bill pulls into a gas station for a fill-up. The attendant comes out and begins to pump 
 gas into the first couple`s tank. As he is doing this,he looks into the passenger window. 
 
 `Hey, Hillary. We used to date in high school, do you remember me?` he asks. They chat for 
 a few minutes, Bill pays and the first couple leaves. 
 
 As they drive Bill is feeling very proud of himself and looks over at Hillary. `You used to 
 date that guy? Just think what it would be like if you had married him,` he says smugly. 
 
 Hillary looks at Bill and shrugs. The she replies, `Well I guess you`d be pumping gas and he 
 would be the President.`