This reminds me of one of Douglas Crockford's talk. The story goes some thing like this.

* Some Russian Porn site uses jsonp using Crockford's host and he get a huge bill

* He polity asks them to host their own version and they don't reply

* He redirects the site to 'http://fbi.gov

* He receives a call from the FBI, because they have been getting suspicious traffic from some Russian site

* He then goes on to add a alert box with a annoying warning saying the site stole his bandwidth. Who cares for warnings any ways?

* He finally puts a loop in the JS file so that the other site wont load. He finally wins