The security agreements expressly provide that they secure all future indebtedness. A course of dealing between parties may give particular meaning to and supplement or qualify the terms of an agreement. They presented evidence that in this instance, the parties intended the real estate mortgage to be the sole security for the note. The trial court determined from the evidence that the parties established a course of dealing in which they expressly agreed upon specific security to secure individual promissory notes. We conclude that the trial court's finding that the alteration was material is not clearly erroneous.
Fraud There can be no discharge unless the alteration was both material and fraudulent.
Accord Citizen's Nat. The general rule requires a party seeking discharge to show that the holder altered the instrument with a deceitful purpose. Bank of Willmar , supra at 917. There was evidence that when the promissory note was executed by Reginald and Nancy, no additional security was sought, other than the real estate mortgage listed on the promissory note. There was evidence that when the Bank requested James to sign the renewal note, the Bank misrepresented to James that it was the same note previously signed by Reginald and Nancy, when in fact, the note had been altered.