What, I still go trick or treating....is there something wrong with the "Nah, I don't like candy, where's your liquor" line?
Actually, the last time I went trick or treating was in high school, with a few friends, but we did it as a lark, and it was fun. We got some candy, and a lot of "aren't you too old for this?" We used the line "We're young at heart." That gave us some good laughs, and also made some of the people doling out candy laugh too. We meant no harm to anyone, we were just having fun.