Crap phones block the Finish sewers
As phones get smaller they are easier to loose and fall in places where you do -not- want to pick it up:
Helsink Water didn't supply exact numbers, but dropping mobiles down the loo is pretty common elsewhere too. In the UK alone, as estimated 600,000 mobiles are flushed every year. As mobile phones get smaller and smaller, this number will undoubtedly increase, although dropping a cell phone down the pan is still only number six on a list of mobile phone accidents compiled by Swedish retailers. Most mobiles apparently come a cropper as a result of tight jeans.
Via The Register