This time, Fluffy stays in the box for about 6 seconds before leaving herself.
Here's a few more images of Fluffy and Barney.
Here Barney approaches the box once more. He is about to land on the box hole. It's only Fluffy (ie the female) who approaches knowing she is going to go straight in.
This shows Fluffy emerging from the box at speed and immediately turning so that she can land on the box's roof.