This is just an FYI, I'm sure some of the more experienced people already know about this scam. Two weeks ago I was walking to the store near my D1 apartment in Saigon when I was approached by two "women" on a motorbike. One got off the back of the bike and started AGGRESSIVELY grabbing my crotch. I've been approached by many nasty women before (but not in this neighborhood) so initially I just went with the nice no-thank-you approach which has worked 95% of the time in the past. When this one did not go away I looked at the face and realized this was not a woman at all, it was a ladyboy. Long story short, the right hand was grabbing my crotch so hard that I didn't notice the left hand was in my pocket. When she walked away I immediately noticed my phone was gone, at which point I started chasing her shouting many expletives very loudly (fucking bitch whore!). She got scared and threw my phone back at me and then ran away. I have read about this scam before, but I didn't realize it was happening to me until it was too late. The lesson I have learned (other than the basics like always guard your phone and wallet and only carry what cash you will need) is that if a street whore is being physically aggressive it is best to be physically aggressive right back in return.