Some time ago friends were pranking each other with 32GB favicon.ico files this was a thing and one of them was on mobile in Germany. Turns out it would keep d

Some time ago friends were pranking each other with 32GB favicon.ico files this was a thing and one of them was on mobile in Germany. Turns out it would keep downloading in the background even if leaving the page. Their account was locked and had a massive bill for roaming charges. That prank went horribly wrong.