Event tickets are easy to account for. Just specify who carries the risk in case the event is cancelled or the customer can't go the the event. The money can be

Event tickets are easy to account for. Just specify who carries the risk in case the event is cancelled or the customer can't go the the event. The money can be reimbursed. Happens all the time. The only problem is when the merchant is dishonest. Also too common, that's really a legal and regulatory matter, because there are always ways in which sellers can break the law.