http://www.youtube.com/watch?v=KaZuBziWLgk
http://www.youtube.com/watch?v=J-v1zV8n0cA
http://www.youtube.com/watch?v=mV9YzBmtmVU
http://www.youtube.com/watch?v=t6dbKDaGQ8M

Edit: You'll need sound, and there is bad language, just so u know
If you're a farmer, make sure you've got your sense of humour hat on before clicking...