It is tax season, a fact grifters are well aware of. Two local residents, Janet Fensterer of Amagansett and William Scholl of Springs, recently received telephone calls from people claiming to be Internal Revenue Service agents. Mr. Scholl told police he hung up on the caller because he had just sent in his 2014 tax forms and was sure he did not owe any back money. Ms. Fensterer contacted her accountant, who assured her of the same thing.The East Hampton Town Police Department has put out warnings in the past against residents sharing personal information with strangers, particularly Social Security numbers and date of birth.