Go to http://www.google.com/translate_t and type I AM A BIG FAN OF GOOGLE. Translate it from "Engilsh to Spanish". Copy the Spanish text, paste it and translate it back from "Spanish to English'. You will see something funny: "I AM A GREAT VENTILATOR OF GOOGLE"
Another funny example is japanese.
If you do the same thing the result will be "I AM THE FAN WHOSE GOOGLE IS LARGE" (If thats supposed to mean a body part, I dont call it google,I call it ****)
Try with other languages. You will get a stomachache from laughing...