When law enforcement officers who are not armed with a warrant knock on a door, they do no more than any private citizen may do," [Alito] wrote. A resident need not respond, he added. But the sounds of people moving and perhaps toilets being flushed could justify police entering without a warrant, he added.If you're sitting on the throne,
contented, all alone,
and a knock comes at your door...
Their knocks you may ignore,
but remember not to flush!
Keep the pipes hush-hush!