Working in the 1890s during the height of ‘humbugs,’ ‘dime museums’, and rational amusements, Parker did what any natural-born-showman would do. He took a cue from the best and hired one of P.T. Barnam’s ex-managers to help him take his practice on the road. From his horse drawn office, amid his show girls and buglers, Parker promised that he would painlessly extract a rotten tooth for 50 cents. And if the extraction wasn’t painless, he would give the customer $5.00, the equivalent of roughly $115 today. Parker’s band actually served a three way purpose. First it drew a crowd. Second, it distracted the patient whose tooth was being pulled (along with a healthy cup of whiskey or an aqueous solution of cocaine he called “hydrocaine,”) and third, it drowned out any possible moans of pain emitted from a patient.
Parker even legally changed his first name to Painless. Link