I'm afraid that family group remains clueless. Among other things, people don't understand the different magnitude of strength of wild animals. Without exertions, that lioness could pop out any of the windows. It wouldn't have to be excited or trying real hard. It would be like us popping open a beer. Get the claws at the top of the rubber seal and pull. Adult chimps can take people apart like dis-assembling Barbie dolls, removing limbs with ease. I guess remaining calm saved this group. Otherwise, it might have been adolescent girls for lunch for the lion gals gathering.