I have also gotten robbed. If you donate some of your points to the Tamaking, this will not happen as often. I donated my points to him, and I didn't get robbed for a while. If you get poop or a snake in the mail, you should donate points to the Tamaking. If you get a heart, points, or a gift, then that means that you donated points to the Tamaking.
~Bubbagump119