Deer whistles

Cara and Tony lovingly (or maybe facetiously) gave me deer whistles for my car in my stocking.  I'm not gonna lie, I was totally going to buy some for myself, so I appreciated more then they probably deserved.  I got to pick up my rig (which I've now named the Deer Slayer), and immediately on getting her home, I installed the deer whistles.  I don't know if they are working or not... but, I haven't seen a single deer since I put them on.  Here's hoping deer #3, was also deer the last!