I'm meeting a buyer to sell a pair of NIB Guiseppe Zanotti flats. When you meet a buyer, do you also make them sign something, in addition to accepting cash? I guess it wouldn't necessarily hold up anyway. Also, should I let her try them on, or just inspect them? I usually don't accept returns for size, change of mind, etc. She did a buy it now, so technically committed, right? What to do!?!?!?