(It probably isn't either of those things since I'm sure their tooling prevents that sort of thing)
That's a good way to lose access to production forever.
> If a week prior, I had typed a few different keystrokes, I would never have been in that room.
So I doubt it was something like "Looked at a users private information"
He's running a test, and he wants to make sure his new function retrieves data properly. He can search for his own name, but out of idle curiosity and boredom (he's seen his own data a million times, he wants something visually distinct on his screen), he searches for the name of a friend of his that he hung out with last week. It's only a few different keystrokes to type the alternate name, but now he's accessing private information and gets canned.