Cat in Tin Foil Hats
 
I was thinking that the kitties did not want the aliens to read their minds.  They wore their hats with bravery, honor, and annoyance...but they remained safe from the ever-watching eye of Cortana.  Then they dropped the hat when they heard the crinkling bag of Temptations.

Check out the Tin Foil Hat video series on YouTube : https://goo.gl/J7fCEj