It was his place of work.
In my home (office) I have 3 computers, printers, antique figures, paintings etc etc.
One lap top alone cost more than 60,000 THB
I do not hide them away every time that I go out to check in guests.
Window cleaners, a/c guys, maintenance people etc all go in and out - even if I am not there.
Less of the victim blaming - the problem is the thief, who is not the sharpest knife in the drawer by the sound of it.