Entrepreneur Jim Lewis arrived in the Shark Tank wearing a white doctor’s coat, fitting for a man who is a Forensic Pathologist by day and a self-prescribed “Wall-ologist” by night. Lewis brought with him his invention – Wall RX by his company the Wall Doctor. Wall RX is an innovative solution to the costly and common problem of how to inexpensively and quickly patch a hole in a drywall. After leaving the Shark Tank, Lewis probably realized the one problem he didn’t have seem to have a solution for, which was how to navigate a tank full of hungry Sharks and make the most sensible and profitable deal for his invention.