Many people, especially those who are just starting their own business, think about starting it together with anyone else. A friend, a brother, a sister, etc., or even with a "money bag". The advantages seem obvious: distributed load, replacement in case of illness, twice as much productivity, additional funds. Everything is fine. Therefore, the advice is as follows. Never start a business with a companion. Don't start the key one. With a very high probability: you will spoil your relationship with relatives, you will quarrel with a friend, and the "money bag" will throw you out of business. And don't be inspired by HP with its founders Hullert and Packard. Usually, the problems start in two cases: things are going bad, things are going well or even great. As long as everything does not go shaky, not valko, the bread is likely to have no problems. Option one: who is the main one or a mismatch of goals. Very frequent variant for beginners, things went well, everyone thought that he un