OMG, one of the biggest problems with going to a chiropractor is you have to lie on your stomach making it easy for someone to masturbate on your back without knowing. Iowa chiropractor Dan Duffy has been charged after it was alleged he masturbated on a patient during an examination. The victim claims she heard him unzip his pants and then heard the sound of him slapping the salami. Following the ordeal she went to police and had her lower back swabbed and low and behold, chiropractor sperm. The DNA matched Duffy’s but he is adamant he is innocent.