When a horse falls, foam comes out of its mouth.
When it falls, the legs of the horse thrash and the horse is no good, so somebody shoots it.
The horse turns into glue.
A machine puts the glue into bottles and children squeeze the bottles to get the glue out
and stick bits of paper onto cards.
Glue gets on the children's hands and the children eat the glue.
And the children become the horse.