It is quite common to seek help from friends when moving in and out, it could be the result of a sale in the second hand market, etc. I don't think knowing your

It is quite common to seek help from friends when moving in and out, it could be the result of a sale in the second hand market, etc. I don't think knowing your neighbours is enough. The burglars were quite polite and I have to clarify it happened in Switzerland where most people don't necessarily assume malice by default. Not a country where you risk being shot for stepping in a property.