(Portland, OR) -- A Portland man will be spending time behind bars after being convicted for a tenth time for felony public indecency. A judge yesterday sentenced Michael Dorgan to 55 months, or nearly five years in prison. He will also face five months of post-prison supervision and be required to register as a sex offender. This most recent conviction stems from an incident at Portland State University on July 8th, when a group of women reported he'd exposed himself to them and started touching himself inappropriately.