When two or more people team up to achieve a goal, it's generally assumed that their goals are reasonably similar. At the very least, what one of them wants to achieve shouldn't conflict with what the others want to achieve. Otherwise, why would they team up? Because they didn't know what their teammates are after. Compare Mistreatment-Induced Betrayal and Right Hand Versus Left Hand. May lead to an Enemy Civil War. Even Evil Has Standards can be a cause. See also ~You're Insane!~ Examples of Not What I Signed on For include: