Michael Stivers had an interesting career. He was a professional wrestler, who used the stage name "Pretty Boy Behning." He was also a police officer for 13 years, but around 1990 he quit that profession to become a hypnotist.
At first, he ran a pretty ordinary hypotism business — using hypnotism to help people lose weight or quit smoking. But around 1991 he discovered a unique way to specialize and differentiate his practice. He became a "breast enlargement hypnotist."
His pr material explained: "The larger-breast style of self-hypnosis relaxes the subject, then allows her to will an increased blood flow into the fatty tissues of the breast, much like that during menstruation or pregnancy. Daily conditioning through self-hypnosis allows what amounts to a permanent enhancement."
But according to a 1991 AP story, some patients had mixed results:
A 58-year-old Tampa woman who wouldn't give her name said her bust measurement grew 3 inches through hypnosis in April, but then shrank 1 ½ inches.
As far as I can tell, Stivers stayed in business until at least 1995.
Arizona Republic - Feb 1, 1995
Des Moines Register - July 22, 1991