Similar to assumption of risk, waiver by conduct is a legal principle that states a person can agree to surrender their rights through the actions they take. Is specifically is used in regard to certain individual rights, such as those of the constitution or of an employee, that a person may waive when the take certain actions. The simplest waiver by conduct could be seen in the case of criminal law with the Miranda rights — such as the right to an attorney, etc. — which might be said to be waived when the person takes certain outrageous actions showing that right is not wanted. A court might rule that a person who refuses to select a lawyer after being informed of the need to do is waiving their right to an attorney. However, waiver by conduct is also a very fundamental in the concept of waivers — a waiver need not to be written and signed to be legal.