+1 @dill
Its hard to believe how conditioned we have become as a society. The govt would love us all to make every transaction w/o cash and instead use traceable pmt like a credit card, or a check. Cash is generally not traceable. Although there is a $10k limit which the bank must report anything over that. Recently I heard they were trying to lower the amount to something like $600 instead. I'd accept the cash in a heartbeat. But get the pens and check the bills.
@bkeske it's not just builders. I am a retired builder. I've had several people pay me with cash, most often large sums. Some yrs back, one lady gave me $10k in cash. That was a somewhat nervous rider to the bank with doors locked