How long can piggies be apart before they begin to re-introduce and re-establish dominance? I take Cupcake for laptime and she sleeps and lays on me for about 2.5, sometimes 3 hours. Or I have her for a couple of hours, put her in the run around area and have Flickers on my lap (only 1/2 hour at most is all she wants). How long is too long apart?