She had trouble keeping awake as he 'droned on' about himself.
the endless 'drone' of washing machines at the laundry
the 'drone' of passing traffic
(..) ...but there's more at stake here. I can't support this, not at the risk... ...of leaving us militarily exposed. Come on, you know those bases are for show now. We could launch a drone off of any carrier in the gulf... Excuse me, miss. Sir, you can't leave that there. Hey, buddy! (..)2013 White House Down