That happens all the time. Don't know how many times I got asked to stay for one night and take a next days's flight, all on their expenses, plus 500$ cash,
or a free flight valid for a year etc. (to Istanbul last time).
Bummer is, when you're on bizz trip, you gotta get there, no way around it.
I've seen people just waiting for this, jumping up and running to the desk to get their free night or whatever it is as soon it's announced...
.... guess it's a sport or hobby for some people;-)
Good on your Brother, free BKK trip is quite nice right
