Abstract: A system including at least one monitor and a toy is disclosed. The at least one monitor may be communicatively coupled to at least one sensor configured to measure at least one physical parameter of an operator. The at least one monitor receives at least one measurement from the at least one sensor indicative of the at least one physical parameter of the operator. The at least one monitor may determine whether the operator is in an elevated emotional state based, at least in part, on the at least one measurement. The toy may be capable of being operated by at least one operator and may comprise a control system in communication with the at least one monitor. The control system may be configured to affect at least one behavior of the toy to cause the toy to be more difficult to use when the monitor indicates that the operator is in an elevated emotional state.