(1)
In General. In responding to a pleading, a party must affirmatively state any avoidance or affirmative defense, including:
accord and satisfaction;
arbitration and award;
assumption of risk;
contributory negligence;
discharge in bankruptcy;
duress;
estoppel;
failure of consideration;
fraud;
illegality;
injury by fellow servant;
laches;
license;
payment;
release;
res judicata;
statute of frauds;
statute of limitations; and
waiver.