A rich man and a poor man are sitting in a bar late one night. They're talking about different things and then the poor man asks the rich man what he got his wife for her birthday.  

"I got her a brand new Mercedes Benz and a 24-karat diamond ring", said the rich man.  

The poor man, a bit puzzled by this, says "why in the hell did you get her both?"  

The rich man replies, "I got her both because if she doesn't like the ring, she can take it back in her new car and exchange it."  

After this, the rich man asks the poor man what he got his wife for her birthday.  

The poor man responds," I got her a pair of flip-flops and a dildo." Obviously confused, the rich man asks why he chose those items. The poor man replied, " Because if she don't like the flip-flops, she can go fuck herself."