Lion Killing Man While People Looks On

Well ain't that a shame. People looking on while this poor chump gets his neck chewed on. But my question is how the fuck did he get in there to begin with? There has to be a door right? So why didn't other people try to get in there? I mean I see that little fucking dog coming and going with no problem.
This just proves my point. Don't fuck with wild animals. They don't have feeling. They don't care if humans rule the planet.
We should not be keeping animals in the zoo and use them at circuses.