I was fitting a drip tray to my keezer today and decided to screw and glue a timber plate on the front. Logic told me that between the outer body of the freezer and any cooling pipes there would be at least 20mm of insulation so I planned to use screws that would only penetrate by 5mm. On drilling the fourth pilot hole and had gone in about 2mm I hit a cooling pipe. Freezer knackered! Stupid me applying logic.