A joke I had to share!

This joke got a lot of response when I broadcasted it on my Blackberry so thought I would share it with everyone on here too.

"This is a great example of "did I say that out loud???" This actually happened at Harvard University.
In October of last year in a biology class, the professor was discussing the high glucose levels found in semen which gives the sperm all the energy for their journey.
A female freshman raised her hand and asked, "If I understand, you're saying there is a lot of glucose, as in sugar, in semen?"
"That's correct," responded the professor, going on to add statistical info.
Raising her hand again, she asked, "Then why doesn't it taste sweet?"
After a stunned silence, the whole class burst out laughing. The poor girl's face turned bright red, and as she realized exactly what she had inadvertently said (or rather implied), she picked up her books without a word and walked out of class, never to return. However, as she was going out the door, the professor's reply was classic. Totally straight-faced he answered, "It doesn't taste sweet because the taste buds for sweetness are on the tip of your tongue and not the back of your throat."

Now I'm sure this didn't really happen at Harvard but funny none the less!