Johnny's excuse will go along the lines 'I'm not responsible for what sites you click on'.
Anyway, if you use Firefox download an extension called 'NoScript'. You can stop every site executing javascript etc. and you can turn it on tempoarily for a site (and all sites that try to execute active content) or do it permenantly or if you're pissed, turn it on globally.
For example.
Then the aforementioned thing wouldn't have occured.