Think you could be an Olympic curler? Don't make these women laugh.

LONDON, Ontario - American curling champion Tabitha Peterson has heard it all: Anyone can curl. My grandmother can curl. The Swiffer sport. Housekeeping comes to the Winter Games.

”Everyone thinks they can go to the Olympics in curling because they think it’s so easy,” she says, shaking her ponytail. She’s sitting in a nearly empty banquet room in a…