Snakes on a Bike...

http://www.bing.com/videos/watch/video/snake-crawls-out-of-motorcycle-engine/1jrkhy2ad?q=Snake&rel=msn&from=en-us_msnhp&form=msnrll

Kept his cool, though...

i would have stopped so fast that snake would have went over the handle bars

Used to ride with a guy who had a Ball Python in his jacket. At stop lights "Slick" would go out and take a look at the car in the next lane. He could get 2/3 of his body stretched out and sniff the car. If you dont know a snake smells with its tongue.
Should have seen the cars freek out ! I have ridden with some really odd people.