Wis. Stat. § 407.403

(1) The bailee must deliver the goods to a person entitled under the document who complies with subs. (2) and (3) , unless and to the extent that the bailee establishes any of the following: (a) Delivery of the goods to a person whose receipt was rightful as against the claimant; (b) Damage to or delay, loss or destruction of the goods for which the bailee is not liable; (c) Previous sale or other disposition of the goods in lawful enforcement of a lien or on warehouse keeper's lawful termination of storage; (d) The exercise by a seller or lessor of the right to stop delivery pursuant to s. 402.705 or 411.526 ; (e) A diversion, reconsignment or other disposition pursuant to s. 407.303 or tariff regulating such right; (f) Release, satisfaction or any other fact affording a personal defense against the claimant; (g) Any other lawful excuse.

(2) A person claiming goods covered by a document of title must satisfy the bailee's lien where the bailee so requests or where the bailee is prohibited by law from delivering the goods until the charges are paid.

(3) Unless the person claiming is one against whom the document confers no right under s. 407.503 (1) , that person must surrender for cancellation or notation of partial deliveries any outstanding negotiable document covering the goods, and the bailee must cancel the document or conspicuously note the partial delivery thereon or be liable to any person to whom the document is duly negotiated.