Caleb can save lives every day, but he will never be a decent human being as long as he follows the Way of the masturbator.
He had spells of moroseness and irritability, however, and had also been a masturbator.
masturbate mas·tur·bate (mās'tər-bāt')
v. mas·tur·bat·ed, mas·tur·bat·ing, mas·tur·bates
To perform an act of masturbation.