Countdown to Halloween

Who will I be dressed as on Halloween? Last year I dressed up like my dad except I made myself 100 pounds overweight and put a bottle of viagra in my shirt pocket. I had to show my dad this. When I showed him he wasn't too amused. I meant to take the viagra out of my shirt pocket before I saw him but it proved to be funnier. My dad is a prankster too so I'm kind of afraid what he'll do to me this year. One time I played a prank on him he ended up showing up after school (high school) in his underwear pretty much giving me a lasting horrific embarrassing memory that he always threatens to do to me again. I'm worried now. He has hinted at coming to my job nude. Gotta love parents! If he does do that then I'm quitting my job and moving far far away so that I can start a new life under a new name.