Hi brother bus, remember don't follow those touts on motorbikes if they promise to bring you to find chickens. They won't rob you, they will really bring you to a hotel and ask the chickens to come for you to choose. After paying and going into the room, the chickens will disappear while you are showering or say that the cong an is here. By then, you also lan lan. HCM is too commercialized. The money you pay for the chicken will not be much difference than paying in Singapore. Since you have 4 days, make your way to vung tau, an island near HCM. While there, look for those massage shops open by locals in their house. Massage cost about $10 and special services another $10. The feeling is like 偷情。remember to go for a hair and facial face at the shops on the street. Wash your hair until song song for $5