Arrested over $13.80 cab fare

An argument over 20 cents' worth of cab fare has $875,000-a-year Blackhawks star winger Patrick Kane facing a felony robbery charge.

Kane -- who's scheduled to start U.S. Olympics orientation camp next week -- gave the team a black eye and even caught his mother off guard Sunday when he and his cousin were charged with assaulting a cabdriver in his native Buffalo, N.Y.

Kane, 20, and his cousin James Kane, 21, are accused of grabbing back the $15 they gave the driver when he said he was 20 cents short of giving them change for their $13.80 fare. It was "after 4 a.m." and they had caught a cab from Buffalo's Chippewa Street Nightlife district, according to the police …