Tropea was stranded — but she wasn't trapped outside for long.
Soon, Boko saved the day.
"I went to the back patio and he saw me waiting there," Tropea said. The patio door was secured with a stick to prevent it from being opened. It was no problem for the clever cat.
"He started rubbing his face on the stick and I was encouraging him to mess with it. I was coaching him to lift it up," Tropea said. "He understood what I was trying to tell him and he started lifting it up!"
Here's that triumphant moment on video: