We ( the business) get charged transaction fees; and those fucking gay-ass hand held card readers aren't cheap either. That cost gets passed along, folks. If the customer is getting dinged too, the prick banks are yet again getting a fucking cut on money that isn't even theirs.
Try doing cash and carry at the bar when some anus just has his debit card. That and a table full of broads who wanna pay separately all asking you how your hand held works (theyre not standardised) when you have six other tables to see. Seriously, is money really heavy? Are the corners too sharp?
I also don't like the fact that it leaves a record of what ive been tipped ( though this pisses me off less than being stuck behind the elderly/waiting for a drunk guy on the phone to run his card).