Originally Posted by g_leyser

My questions for all of you are: Ever seen (or done) anything similar?
Yes, I saw a couple from a non-English speaking country try it. The FA reseated them shortly after take-off when she discovered what was going on. They pretended they "didn't know".

What do you think of someone like this?
Not much.

Could this be considered stealing and therefore illegal?
My opinion is that it should be, at least if it's discovered well after the the perp has enjoyed the extra goodies afforded to the paying FC/Biz pax.
Compare it to shoplifting, the same principle applies...the company losses are passed on to the paying customers.

Could it be considered a security breach?
I don't think so, because they still have to go through the same security screening before boarding the aircraft.

I would love to hear any FAs views if you're out there.I'm not a FA, but my spouse is a cockpit crewmember.