What should my friend do after applying for a visa while in Thailand?

A user shared concerns about their friend applying for a visa while still in Thailand, suggesting that this could lead to negative consequences like losing money or having the application canceled. Commenters advised that the best course of action is for the friend to travel to the country where the application was submitted as quickly as possible. They should prepare for the possibility that the embassy may request proof of exit from Thailand. Some pointed out that not all embassies require proof of leaving Thailand, but the safest option remains to leave Thailand to avoid complications.