Providence police have arrested a man who allegedly wielded a potato disguised as a gun during a robbery attempt. Thirty four-year-old Gary Deming of Cranston was arrested on robbery charges. Authorities say he pretended he had a gun when he demanded money from a convenience store and dry cleaner April 21st. The convenience store manager chased him off with a baseball bat. A dry cleaner employee gave him a fake $20 from a decoy register. The station reports Deming is also accused of breaking into his sister's home on the same day as the alleged potato incidents. She told police he took a purse, debit card and $100 in cash.