I Ruined Halloween

I didn't mean to ruin Halloween. I love Halloween. I've always had fun dressing up and have never - not once - resorted to the sexy kitty/nurse/devil costume.
They say what you dress like on Halloween reflects who you'd like to be. In that case, I would like to be a zombie, cave girl, burglar, Adam Ant - many things - but never a sexy kitty. I've never worn a pre-made costume. I used to plan my costume in July or August, but recently I've been winging it later in the year.
I would have loved to try a female Jack Sparrow, but I've seen too many, so I never got the chance. I did dress as Mia from Pulp Fiction the year that was released, a giant needle sticking out of my chest and all, but I try to avoid the usual suspects.

I started a new job three years ago. Everyone I work with is very creative, except when it comes to Halloween. They all donned the basics - vampires, little kids, as-sexy-as-you-can-get-away-with-at-work kitties. I showed up the first year in one of my made-up costumes. They all said they liked it. The second year, my boss said she gave the prize away too soon, when she saw my costume. The third year, people threw on cat ears or a witch's hat. This year... barely anyone bothered.
I couldn't figure out how it had gone from a fun event, to a non-event. Then, someone cheerily pointed out that this year I hadn't dressed for Halloween - not really. At the time, I just shrugged. I thought I was following their lead. I can wear my costumes to parties and events, why dress at work?
The more I thought about the look on her face when she realized I hadn't put any effort into a costume, the more it bothered me. She was pleased I hadn't dressed. Pleased.

I think I ruined Halloween. They were all very happy to pull out a pre-made costume and slap it on. Then, I came along with my weird, self-made stuff and they simply didn't want to bother to meet the new curve. They all gave up. It's an empty victory and a competition I never meant to create.
Maybe, I'll ask off for Halloween next year?