In Ovalle v. State, 13 S.W.3d 774, 783 (Tex. Crim. App. 2000), the court reiterated the rule that a prompt instruction to disregard will cure error associated with an improper question and answer and that a mistrial should only be granted when the answer is clearly prejudicial and is of such character as to suggest the impossibility of withdrawing the impression produced on the minds of the jurors. See also Hernandez v. State, 805 S.W.2d 409, 414 (Tex. Crim. App. 1990).