A guy asked a girl in a library: ''Do you mind if I sit beside you?''The girl replied with a loud voice: ''I DON'T WANT TO SPEND THE NIGHT WITH YOU!''All the students in the library started staring at the guy; he was embarrassed. After a couple of minutes, the girl walked quietly to the guy's table and said: ''I study psychology and I know what a man is thinking. I guess you felt embarrassed, right?''The guy responded with a loud voice: ''$500 FOR ONE NIGHT? THAT'S TOO MUCH!''All the people in the library looked at the girl in shock. The guy whispered in her ear: ''I study law and I know how to make someone feel guilty.''