A very shy guy goes into a pub on Valentine's Day night and sees a beautiful woman sitting alone at the bar.©JOKEDEMO.COM

After an hour of gathering up his courage he finally goes over to her and asks tentatively, "Um, would you mind if I brought you a drink?"©JOKEDEMO.COM

She responds by yelling, at the top of her lungs, "No, I won't sleep with you tonight!"©JOKEDEMO.COM

Everyone in the pub is now staring at them. Naturally, the guy is hopelessly and completely embarrassed and he slinks back to his table totally red faced.©JOKEDEMO.COM

After a few minutes, the woman walks over to him and apologises. She smiles at him and says, "I'm really sorry if I embarrassed you just then. You see, I'm a graduate student in psychology and I'm studying how people respond to embarrassing situations."©JOKEDEMO.COM

The man responds, at the top of his lungs, "No I will not pay $200!"