SAN FRANCISCO -- There was a mess Valentine's Day night in San Francisco, California - feathers everywhere in Justin Herman Plaza.
Those feathers were mostly cleaned up by late Tuesday night, but weren't a product of any natural migration. It's from a San Francisco tradition - the Valentine's Night spontaneous pillow fight.
Crowds of strangers playfully pelted each other with pillows, sending stuffing all over the place.
"I just love the feeling of being hit with everyone and hitting," Rob Singh told to ABC11's sister-station KGO.
The city says cleanup costs for the event are normally as much as $5,000.