A New York City subway passenger narrowly escaped serious injuries when a disturbed man allegedly threw a lighted cup of flammable liquid at him on a Manhattan subway on Saturday. The victim’s chest and neck were burned after his shirt caught fire, authorities reported. It happened on a No. 1 train as it was pulling into the Houston Street station in Manhattan shortly before 3 p.m. The attacker then jumped off the train and fled, but stopped to pick up a phone a woman dropped, the New York Post reported. Officers were reportedly able to track the phone to locate and arrest the suspect. The vic…