Man trying to rob store is locked in

MILWAUKEE -- Sometimes saying please just doesn't work.

A man trying to rob Marine Land Pets got locked inside the pet store because of some fast action on the part of two clerks. The sisters, Wendy and Crystal York, triggered alarms that notified police and locked the store's front door.

The man can be heard on the store's security tape demanding that the clerk's open the door, only to hear them say, "We can't."

Then he asks again, "Open the door ma'am. Please open the door."

He finally found his way out a back door and fled. Police were looking for him.