@Dek *****
this is nonsense . . . he paid the fine for two days overstay and was allowed to leave Thailand. It will not have any repercussions. . . . . You can only get deported and blacklisted if you are caught inside Thailand instead of being already on your way out at the airport. You seem to misinterprete the overstay rules, so here they are for you, to read and understand. His two days overstay fell under "surrendering" when he reported it at the airport, that's why there are no repercussions