Alright, everyone ready for what little respect they had for me to go down even further?
I dressed up for an anime convention once with some friends, and even performed on stage.
But in my defense... my costume was really cheap, a whole group of us made ours together so it was a social activity, they were GOOD costumes because we all did theatre and knew what we were doing, and every single one of us won various monetary/merchandise prizes for our costumes.
Not to mention internet fame--I imagine the many photos of that event are still out there...