@Rodger *******
not too sure what I could confirm here. I have no idea if Brian and Sheila are related, nor whether they have an inter relationship issue. Being that I made up their names and really didn’t want to get in to a gender type discussion I left it to the reader to judge.
I can confirm that entry in to Thailand is up to the immigration officer you hand your passport to. Probably best not to ask their name as it almost certainly won’t be Brian or Sheila.