All my copilots are always on probation! 
Only happened once in my career and, since I was at a regional, she was relatively young and hot (26, thin, cute, ended up marrying one of our pilots later on who immediately made her quit her antics).
SM was her initials, any PCL peeps probably know who I'm talking about...
I still think lower back tattoos are HOT!
If you go back to the web page you posted and type in airline flight in the search engine you will see a differnt /longer version than the most popular one on on the internet. If you watch the whole thing you can see that none of the cockpit instruments are on in the beginning and the whole cockpit is black/unpowered.
So the plane isnt even in flight. Also makes you wonder why the guy in the left seat only has 3 stripes and you never see a copilot around in the video anywhere. They may or may not be airline employees. Probably are and are having a little after hours fun but then again you never know.
And to answer your question. "YES" is does happen......................so I have heard!
You sure? When I started ('01), I thought she was around 26-27...
Looked pretty good if she was that close to 40. Then again, someone will come on here and remind me of the F/A I was dating with 5 tattoos who flipped out on me that effectively ended my F/A dating habits.
I still think lower back tattoos are HOT!
