I don't know if anyone has seen this but it's quite a phenomenon
http://dragcave.netBasically it involves stealing dragon eggs, clicking on them a lot until they hatch - or die if you don't click enough. And then when they grow up you can breed them and create more eggs.
People go a bit crazy over this lol
Anyway, it would be good if the Pets mod could offer something similar to this hatching/maturing/breeding idea between members' pets.
I can't code anything so I will leave it up to the experts but I think it would be pretty cool if it could be achieved - not just dragons but any kind of pet.