Dear Master Lee, Recently, I had my new house being renovated by a contractor. However, I discovered that the mirror(size: 3 by 6 feet)they had installed at my dinning area has a crack line (chipped off). The only way to repair is to replace the whole mirror. In order to do that, they need to break the mirror first. My question is, is it okay to break the mirror in my house as I heard from my colleague that it is inauspicious to do that at home? Thank you so much.