Sometimes partnerships don’t work out as planned. One partner can’t do what they said they could; one works 70 hour weeks while the other works 40; one is down to earth while the other has a big ego. Also, circumstances change: due to illness or disability, a better opportunity elsewhere, maybe a decline in motivation. Many shareholder agreements have a shotgun clause, which allows one shareholder to offer to buy out the other shareholder. A fair price is often the result, because the clause allows the person who receives the offer to either sell their shares or buy out the offering shareholder for that price. Without a shareholders agreement, a shareholder would need a court order to force a buyout.