My best ever was 20 years ago before I was married. My roomate and I dressed up Like wrestlers. We lived, breathed, ate, and talked wrestling the entire week before Halloween to get into the role.
On Halloween we invaded a large commercial haunted house in downtown Austin where my brother was working as Dr. Death. We came driving up in a big limousine complete with our driver/manager and our moll. We got out and demanded that they bring Golden Boy out to us. We said things like, "We've been chasing you down for 2 years and now we found you hear hiding in a Dr. Death costume. This was all pre-staged. So Golden boy came out and we tag teamed him. Beat him up right there in the middle of the street while lines of people watched. They really thought we were professional wrestlers. We were called the Texas Tornados. The funny thing is how all the kids were cheering for us because Dr. Death scared them so much. We finished him off with a flying Valentine elbow to the ribs.
We actually had people asking for our autographs and asking where we would be wrestiling next.
It was the greatest Halloween ever. I sure wish I still had the pictures.