Worked with this guy about four or five years ago.
He left the airline under a cloud for Emirates.
Someone at EK did a basic check.
"Hi, it's (so and so) from Emirates here. We're doing a background check on Captain (X). May I trouble you to ask how long he was the Fleet Manager, please?"
"Uh, who did you say is calling?"
"(so and so) from EK. Sorry to trouble you with this."
"That's alright. Perfectly ok. However you are in fact speaking with the Fleet Manager. My name is (Y), and I've been in this position for quite a few years. I'm sorry to tell you this, but (X) was never the Fleet Manager here, however he was a Captain. Let me assist you to verify what I've just said."
EK thanked the FM at my previous airline, and immediately rescinded the offer of employment to the pilot named in this link.
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Fraud is fraud.
While the good book might suggest not casting the first stone, there is a limit to turning the other cheek!