by the time the waitress came back. she wondered where the lady could be, then she noticed something written on the napkin under which was 4 $100 bills. there were tears in her eyes when she read what the lady wrote. it said: "you don't owe me anything, i have been there too. somebody helped me out, the way i'm helping you. if you really want to pay me back, here is what you do: do not let this chain of love end with you." 