He was the same Doctor Hammer as in Piccolo and Saxo. You met inside the Red Volcano after his obsession with keys disappeared. The saws were jealous but had to be kind to you so they wouldn't get into trouble with their leader Doctor Hammer. You asked him to help with the tools and he put you in the same position as the saws. Just to always be close to you and to keep an eye on you. That day, you were in the room with Dr. Hammer and he had his hand on your waist. Sometimes it even went down to your butt

Doctor Hammer:If you only knew how much I love you...