“About seven seconds, or as quickly as possible so I can get back to work.”

— Bobby Rad, delivery driver, Lawrence

“Like 20 seconds. I've heard you're supposed to sing 'Twinkle, Twinkle, Little Star,' but I just wash them until I'm done.”

— Allison York, Kansas University senior, Alton, Ill.

“Until I can finish singing 'Happy Birthday.'”

— Mark Engleman, construction manager/builder, Lawrence

“Probably like 10. I know you're supposed to sing the 'Happy Birthday' song while you wash them, but I don't.”

— Erin Ross, student development manager, Sabetha