Legal Question in Family Law in Missouri

I suppose that anything is possible. By your use of the term "full custody" it might be that you have not talked with an attorney about exactly what the law is in Missouri concerning custody. You certainly do not provide enough factual information for an attorney to provide you with much of a response to your question. In any event, if you are involved in a situation where the custody of your child is at stake, you really should be consulting with an attorney.