I know I have friends (local) who ask me to do /make things usually holiday cookies, SEVERAL dozen, they come to pick them up and then just say, thanks, I forgot my wallet, I'll catch ya later. Most times I have to remind them 2-3 times, so now I say "just like at WalMart, you aint getting out the door till you pay", of course we laugh but them I remind them to bring their money when they come to pick them up (since they just can't find time to come back by to pay)
even tho we are all friends here I think we should expect to shop just like we do any place else. of course we can and do make allowances for unforseen happenings (which they sure wouldn't do at any "real" store so we should be respectful of others and like we learned in childhood, treat others like you want them to treat you. thankfully we have never had much problem buying and selling here at this free storefront