guess?; I would think two parties that do commerce together could agree to exhange goods and/or services simply "off-setting" (cancelling) what each other owes to each other until a certain time, at which time one party would "square" up with the other, It seem co-operation would be needed?
Printed copy · Anthology Volume 7, page 169Printed copy from The Tender For Law Anthology, Volume 7, page 169 (printed 13 June 2014). Added by this site; not part of the Facebook export.