After a few minutes of this, I decided it was safe enough for a little reconnaissance mission. Like I always say, it's important to know your enemies.
Pretty soon, after I had mapped out all of the intruder's weak points and deciphered its pattern of movement, it was time for an attack.
While I was unable to kill it, I am proud to report that it has not been spotted since. The backyard is once again under my exclusive reign."