How the misuse or absence of commas can convey an unitended message

Caution horse's?

There's an episode of Jonathan Creek where the whole episode and what drives a man to death is down to a little black fly on a note that appears to be a comma. Completely changes the meaning of the sentence. They find the note after his death but the fly has fallen off and they can't work out how the note drove him to death. But Creek works it out. Clever stuff.

Yes, seen that.

Have you seen the episide concerning Ghosts Forge? (apostrophes)

It rings a bell but can't remember. Have seen nearly all of them.

Punctuation. The difference between helping your Uncle Jack, off a horse. Or, helping your uncle jack off a horse.

I always backed caution horses and doubled my stake when trained by H Cecil.

Eats shoots and leaves.