One bad turn after another ? No one is that cursed.
A friend of mine was scammed similiarly in Saigon ... ailing mother needing kidney transplant, snatched bag, lost phone, etc. etc.
To cut the long story short ... you'll be amazed how far some people would go to fleece you, even to the point of hiring people to act the parts. Your 100 bucks may only be one of a dozen others - do the math.
My 2 cents ? If you really feel charitable, give your money to where you KNOW it's put to good use ie. orphanage, retirees' home, UNICEF etc.
*Eternal cynic*