We had an Indian engineer go absolutely batshit, when he found out that he was not getting a scheduled title promotion in favor of a candidate hired from outside; from a different region.
So consuming was his entitlement that he conspired to digitally impersonate the winning candidate's credentials to make him look like the culprit of a catastrophic data loss, and then disappear for a week, after which he mewled about depression to our American HR department for his obvious sabotage.
It is on the fortunate days that these capricious fucksticks do nothing.