Two cows are standing in a field. One turns to the other and says, “Hey… are you at all worried about that Mad Cow Disease?”
The other cow shrugs and replies, “Why should I care? I’m a helicopter!”
There is a lot more here http://www.reddit.com/r/funny/comments/ckwh4/reddit_i_think_its_about_time_we_had_another/
Ok. I know what I will be doing this weekend.