'A regurgitating toilet?'
'Anti-Muggle pranksters,' said Mr Weasley, frowning. 'We had two last week, one in Wimbledon, one in Elephant and Castle. Muggles are pulling the flush and instead of everything disappearing - well, you can imagine. The poor things keep calling in those - pumbles, i think they're called - you know, the ones who mend pipes and things.'
Harry Potter and the Order of the Phoenix, J K Rowling.