A bank teller apparently flustered a would-be bank robber — and foiled a robbery — after asking where the suspect's bag was to carry off the money, authorities said.

Oakland County Sheriff's Detective Tom Bisio said the suspect entered a Chase Bank branch Monday wearing a hooded sweat shirt, sunglasses and winter gloves. He handed the teller a small piece of cardboard that read, "Give me your money."

"He told a teller to 'hurry up,' but when she asked him if he had a bag to put the money into, it must have flustered him," Bisio told The Detroit News for a story Tuesday. "He ran off without any cash."

Police say the man also is a suspect in a completed bank theft later Monday in Macomb County and three others in Oakland County in recent weeks.