My wife and I have two female Maltese, sisters, right under three months of age. We have been working on housetraining them with piddle pads and they are doing really, really well. The issue is... they love their piddle pads. LOL. They will sleep on them, lay on them, drag them around in their mouths, play tug of war over them, shred them, fold them in half....? You name it, they do it. Most things I have read about piddle pad issues say that they must be bored but I don't think that is the case. They get out a lot, they have beds and blankets and crazy amounts of toys. They are active, they run and wrestle and all that stuff. So why are they so interested in their piddle pads? Is it something they will outgrow or is there something I can do? I would appreciate any advice!