The buyer threatened to "get physical" if the teen tried to take the sneakers back, police said.
The suspect took a wallet with more than $800 worth of property from a bar in Williamsburg.
The woman needed stitches after the incident, police said.
The attacker threw chairs at a Bedford Avenue pizzeria and threatened to rob a N. Eighth St. eatery.
The suspect threatened to shoot the clerk inside the Greenpoint convenience store, police said.
In other crimes, a cab driver and two women were robbed of their phones in separate incidents.
The 16-year-old walked into buildings by holding the door after people left, authorities said.
The man took three MacBooks and an iPhone 5s after following a food delivery worker into the building.
The would-be rapist attacked at Morgan Aveune and Driggs Street before 3 a.m. Sunday.
A man who spent the night with a woman awoke to find her gone, along with his stuff, police said.
A thief had unzipped her backpack as she walked down Graham Avenue on Sunday.
The owner of Milk and Roses in Greenpoint suffered two cuts to his chest from the incident, police said.
James Tortora allegedly smashed windows of three cars, and stole a guitar, an iPod and sunglasses.
Two men followed a woman into her building in Greenpoint, police said.
A woman walking her dog while pushing a baby stroller had her iPhone stolen.
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