In an economy where transaction in cash is in vogue, one occasionally comes across a currency note or bill which has partially been damaged on account of prolonged use, or has been taped over. One's first effort is to "pass the buck" at the grocery store, by hiding the damage. If one is honest enough to disclose the damage before handing over the buck to the grocer, the latter simply refuses to accept it. So, one resorts to passing of the buck by deceit.
My question therefore, is: Is it deceitful to transact with a damaged currency note/bill? What does the Catholic Church say about the occasional necessity of "passing the buck" that a believer has to face?