Normally a contract would not be written where one side is free to simply not perform, it would not really amount to a contract. What is in the contract is what controls, absent some violation of a public policy (i.e. contract for sex). Can someone PM me their contract and I can run it past the lawyer in the kitchen making coffee or the judge across the street who is bored out of his mind. If he trims his forcyntha bush any more he will kill it.