I was a bit over-alarmed Thodsaphon's (Tar) coming Friday late night instead of during the next day, as he said. Tar kept the entry card. My other guest was visiting from Vietnam and I was leaving him home alone much of the weekend.
But Tar has calmed down and returned the entry card and a door key and I have informed the chief security guard that I welcome Tar;s visits again, accompanied by myself.