Let's consider this question:
It's about a guy who's upset that his Egyptian co-worker (presumably) got mad about him using a broken coffee mug. Question was held as "does not appear to be about interpersonal skills".
I am thinking that this question should be reopened. There is plenty of gooey IP goodness here:
Intercultural aspects -- is there a "thing" about broken crockery in Egyptian society? I'm hoping we have some Egypt-aware folks who can tell us.
Interpersonal intercultural aspects -- how does one figure out whether a colleague's foibles are cultural or personal? Does it matter? Should one have more patience with mug-sabotage if it's for cultural rather than personal reasons?
How does one bring the subject up? "So, colleague, I note my mug has gone missing..."
Honestly folks. This issue is ten years old and OP can't let it go. He needs our help.