During your stay in casa3dici you may notice this small sign in the kitchen. Way back in the 80ies, Jaap and I studied in Utrecht and shared a house. I think this sign was Jaap's very first "dentist drilling" assignment. We had the sign on the door (Ring once for Jaap, twice for Cees). I can assure you Jaap has continued to practice his drilling skills after the door sign and his patients are in very safe hands.....