There are plenty of different ways that a contractor can get in trouble with an owner or its subcontractors. One is to talk too much and wind up entering into a separate enforceable oral contract. The existence of an oral contract is a factual issue that will be decided by a jury or a judge in a trial without a jury, also known as a bench trial. However, the formation of a contract requires three (3) simple elements: (1) an offer, (2) acceptance of the offer, and (3) consideration. If those elements are proven by one of the parties, an enforceable contract may have been formed and someone may have to pay. There are some limited situations in which the law requires that a contract be in writing. Nevertheless, the best course of action is to speak with caution so that there is no opportunity to argue that an oral contract was made.
And remember, the statute of limitations for an oral contract is three (3) years. Miss. Code Ann. §15-1-29. So, you may want to watch what you agree to do or you may lose sleep for quite some time until the statute of limitation expires.