Happy Good Friday!
Have you ever tried this online flash game? Great funny! You may have a try as well.
What was my best record? The average time was 0.0938 second, and I was rated as Turbo-charged cheetah! Incredible?! ;-)) See the screenshot here, no image faking, of course!
Don't you want to challenge me? Come on! ;-))
BBC online game: How fast are your reactions?
BBC > Science & Nature > Human Body & Mind > Sleep > Sheep Dash