Some cowboys are riding through the desert. They are all on rocking horses.
There are rocking horses in place of real horses.
Why is this chase taking place?
I ain't going back to timeout!
scene: plains description: Some cowboys are riding through the desert. They are all on rocking horses. uncanny: There are rocking horses in place of real horses. entities: Rocking_horse, Cowboy_(disambiguation). caption: I ain't going back to timeout!
Because the robbers and cops are riding toy rocking horses instead of real horses, the caption jokes about why these child-like robbers might be being chased. Specifically --- if the cops catch the outlaws, they might send them to time-out instead of prison because they are riding toy horses instead of real horses.