One surfs. One clicks on links without knowing where one ends up. And today one ended up here: www.shockabsorber.co.uk/bounceometer/shock.html.
Now, this Flash-driven site has a good reason for using Flash, so that's OK. After a lovely and informative intro, I innocently went on to the bounceometer. After settling for size C - and feeling oddly dinky because that was the third smallest size offered - and then choosing an activity level (medium), I got the, uh, bounce metered, and it, well, it defies description.
No, really. Go see for yourself.