Not sure if fellow bros have realised this when you fly in and out of Vietnam. There's always a handful of VBs or VS that will use a Singapore Passport cover to wrap their Vietnamese passport. I have seen this act for the many years of flying between Singapore and Vn. Was on flight back to Singapore last night, saw a VB, dressed like shit (but she acted damm high class) and holding a RED singapore passport. I was like, hmmm, should have married a capable Singaporean husband. Then came to her turn for check in, she handed her passport over to the counter, damm, truth is out, its actually a VN passport with Singapore Plastic Cover. Even the check in counter lady `joked' with her saying she thought its really Viet girl holding Singapore passport.