Originally posted by NorthernCaliforniaHunter: I just got my knife sharpener and lost sleep for two nights sharpening EVERYTHING in the house! Even the butter knives have shaving edges (no, not the butter knives)!! I did learn, the VERY hard way, not to sharpen stuff whilst standing over a hard surface (like my concrete garage floor). I dropped the coarse stone and it shattered! :( I didn't even have it a week and was just about to sharpen the lawn mower blade... So sad.