As an airport employee how easy is it to get on a plane without a ticket after getting through security?

I am getting a job at the airport at the airside and im curious if people have done this before and how easy/hard it would be.
I am sure some people must have attempted doing this , not that I am lol. Just curious
Update: I SAID I AM JUST CURIOUS , lol I would never do that !!. I am just wanting to learn about these things as its my first time working in an airport and im trying to teach myself and make myself knowledgeable on things like this and growing up. I am 19 and its my first job in retail
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