Stable Diffusion Removing the head or upper body during a generation

Is there a way to remove a single body part? for example, if I try to recreate mean girls where a girl falls headlong into a trashcan, no matter what I do her face is always in the view, if I have them dive into water you never get an actual dive into the water, the generation turns into them swimming under the water or something like that.

is there some sort of clipping or no clipping when it generates, so all body parts have to be in view all the time?