The phrasing of Section 68(a) might seem to require an interpretation that setoffs in bankruptcy are mandatory when mutual debts or mutual credits exist. However, this is clearly not the case. In Cumberland Glass Manufacturing Co. v. De Witt, 237 U.S. 447, 35 S.Ct. 636, 59 L.Ed. 1042 (1914), the Supreme Court, referring to what now is Section 68(a), stated:
“The provision is permissive rather than mandatory, and does not enlarge the doctrine of set-off, and cannot be invoked in cases where the general principles of set-off would not justify it.”
See also: Monongahela Rye Liquors, Inc., 141 F.2d 864 (3rd Cir. 1944); Prudential Ins. Co. of America v. Nelson, 101 F.2d 441 (6th Cir. 1939), cert. denied, 308 U.S. 583, 60 S.Ct. 106, 84 L.Ed. 489 (1939); Stanolind Oil & Gas Co. v. Logan, 92 F.2d 28 (5th Cir. 1937), cert. denied, 302 U.S. 763, 58 S.Ct. 409, 82 L.Ed. 592 (1937); Lehigh Valley Coal Sales Co. v. Maquire, 251 F. 581, 163 C.C.A. 575 (7th Cir. 1918).
Moreover, while the right of set-off is discretionary in the bankruptcy court, Prudential Ins. Co. of America v. Nelson, supra; Tucson House Construction Co. v. Fulford, 378 F.2d 735 (9th Cir. 1967), the court must exercise its discretion under the general rules and principles of equity. Scott v. Armstrong, 146 U.S. 499, 13 S.Ct. 148, 36 L.Ed. 1059 (1892); In Matter of Rosenbaum Grain Corp., 103 F.2d 656 (7th Cir. 1939). Thus, where justice and equity dictate that a setoff be denied, it must be. See e. g.’s: In Matter of Garfunkel and Tauster, 8 F.2d 790 (2 Cir. 1924); Burnes National Bank v. Mueller-Keller Candy Co., 86 F.2d 252 (8th Cir. 1936); Clark Bros. & Co. v. Pou, 20 F.2d 74 (4th Cir. 1927); Hitchcock v. Rollo, Fed.Cas. 6,535 (C.C.Ill.1872). In light of this long standing interpretation of Section 68(a) that setoffs are only permissive and must be granted or denied in accordance with equitable rules, it follows that the contention of Brunswick that the District Court had no choice but to grant the setoff must be rejected.
Brunswick further argues Section 68(a) contemplates setting off tort claims against contract claims and, therefore, the setoff in this case was proper. However, a tort claim is not automatically setoff against contract claims. Collier on Bankruptcy, while recognizing that a split of authority on this question exists, maintains that generally the “better view would seem to be that under section 68 tort claims may be set-off against contract or vice versa.” Collier on Bankruptcy, 14th Ed. § 68.-04(3) pp. 878-880. But cf. Remington on Bankruptcy, § 1557 pp. 425-427. But even Collier distinguishes between different types of torts and acknowledges that liability for willful conversion may not be setoff against monies owing the converter by the bankrupt. Collier on Bankruptcy, 14th Ed. § 68.04(3) p. 880 nn. 50, 56.
Brunswick cites three cases contending they support the proposition that conversion liability may be setoff against contract claims. In the first case, Milkman v. Bishop, McCormick & Bishop, 259 A.D. 723, 18 N.Y.S.2d 7 (1940), the bankrupt converted an encumbered automobile belonging to the defendant. In the present case, it is not the bankrupt who converted the property, but rather it is the creditor of the bankrupt. This points to a significant distinguishing aspect between the two cases. A creditor who converts the property of a bankrupt, if his conversion liability is simply setoff against his claim, would receive a larger share of the bankrupt’s estate than if he were to share on a pro rata basis with the other creditors. When the bankrupt is the converter, no such incentive exists. In the second ease cited by Brunswick, Phillips v. Baker, 165 F.2d 578 (5th Cir. 1948), the same situation existed. That is, the bankrupt was the Converter.
The last case cited by Brunswick is In re Salmon Weed & Co., 53 F.2d 335 (2nd Cir. 1931). There a stockbroker re-