There is absolutely both a legal and a social contract in play here. That's not unusual, either. In almost any situation involving cooperation between humans, t

There is absolutely both a legal and a social contract in play here. That's not unusual, either. In almost any situation involving cooperation between humans, the participants are implicitly agreeing to a larger or different set of terms than may be specified in any legal contracts. These contracts are even sometimes contradictory. If someone violates a legal contract you have the right to get back damages via the legal system. Similarly, if someone violates a social contract you have the right to respond via social means, for example, by writing and disseminating a blog post detailing your negative experiences.