Make him a cup of tea, show him some kindness, he will then give up thievery and live a long and happy life helping others.
Or my vote is for the ” whilst he turns up for the meeting go and break into his house and nick his nice things” approach.
How do you educate people that thieving is unacceptable? I suspect that as long as people have owned things, theft has happened. Although oddly enough I don’t believe Saudi have an issue with petty theft.