So, this year i decided to dress up as "Everything in the universe except for me".

Which should i do ( where i am the person, and the symbols are made from cardboard):

{}'
{}^C
\{}

__________________
Let epsilon be less than zero...

I think you should go as the set of all sets that are not members of themselves, and watch yourself disappear into a black abyss as the self-reference paradox consumes you into an alternative universe.

I seen the most unique, costume out of all that came to my door this year. It was also the scariest out of all. Guess what it was....







A white sheet with two eye holes just standing there on my front porch. He didn't ring the bell, just stood there and It freaked me out!! Oldest, cheepest but probably the best costume out there that still strikes fear.