¶1— This was an action of detinue, brought by the appellant, against the appellee, for a mule; and the only plea of th.e defendant, in the court below, was non detinet. A written contract was introduced to show title, which provided that “ the mule is to be Bradford’s ” (the appellant’s) “ until paid for.” Its consideration was borrowed money, and the mule in controversy in this action.
¶2The testimony of Daniel, showing that the contract was usurious, though offere.d in connection with evidence of payments made by him on the debt, was improperly admitted. Section 2092 of the Code (1876) does not vitiate usurious contracts, further than to declare that they “ cannot be enforced, except as to the principal; ” and to prescribe that, “ if any interest has been paid, the same must be deducted from the principal, and judgment rendered for the balance only.” This section applies to suits on such contracts, and not to actions for the specific property, when the contract is *134collaterally introduced as a muniment of title. There is no attempt here to enforce the contract, within the meaning of the statute. Even had an action been brought on the contract, the defense of usury was not admissible under the general issue, but should have been specially pleaded. Munter & Faber v. Linn, 61 Ala. 492; Frank v. Morris, 11 Amer. Rep. 4 (57 Ill. 138); Code (1876), § 3010.
¶3Whether the defense of usury, in a case of this character, can be presented by a special plea, setting forth the facts, or whether the defendant is compelled to resort to a court of equity, is a question that is not presented for our decision by the record, — McGehee’s Adm’r v. George, 38 Ala. 323.
¶4The court erred in admitting the statement of Miss Daniel, that the appellee “ was quite sick ” when the contract was executed. It was clearly irrelevant to the issue, if offered to prove that defendant never executed the written agreement introduced by plaintiff in evidence. Defendant had admitted his signature to this document, and the fact that he was sick when it was executed was not pertinent.
¶5Reversed and remanded.