Spot has already proved to me that you can accomplish more with a well-applied nudge of the nose and a few wags of the tail than you can with a litany of angry words. I 'd love to know what my dog dreams about at night and why he routinely shuns certain perfectly nice dogs in the neighborhood. It would also be nice to know whether all the shivering that goes on when we go to the vet is genuine or just a scam to get a few more sympathy biscuits from the staff. I'm not sure I'd ever want the answer to these questions in words however. Any opportunity to talk would just give Spot another forum to demand more food, longer walks and a softer bed.
Dalmatians are smart enough as it is.
With the power of speech, we just might end up working for them.