Despite your best intentions, it's probably not a good idea to put a wild animal in the back of your car - even if you're concerned it might be cold.
That's exactly what happened in Yellowstone National Park in Wyoming this week, where a father and son put a bison calf in the back of their SUV, before driving to a ranger station with it.
"They were demanding to speak with a ranger," Kate Richardson, who witnessed the incident, told EastIdahoNews.com. "They were seriously worried that the calf was freezing and dying."
Law enforcement officers were called to the park and the tourists, who were from outside of the US, were given a ticket.