Good evening. In Castle S3E23, there is a scene that detective question the suspect about his whereabouts. The suspect says he has no idea. Then, the detective says "That guy's dropped more pills than a three fingered pharmacist". OK,given the circumstance,I can catch the meaning. The detective suggests that suspect was too high to remember what happened. " three fingered", is the volume And "pharmacist", in dictionary, is either a person or a shop. So,how to explain" a three fingered pharmacist" Thank you !