You may not know this, but "Dec" is merely a nickname, which I acquired due to my obsession with the number ten ("Dec" being a contraction of the Latin word "decem", meaning "ten").
I'm so nuts about ten that everything I do must relate to the number ten in some way; once a year I celebrate my tenth birthday, I need to have exactly ten ten-der things in my food bowl for dinner, I always have to be wearing ten items of clothes at any time (which can get pretty sweaty!), and I only have ten teeth in my mouth (I removed the others with a ten-pin bowling ball)!
Furthermore, my favourite sport is ten-nis, my favourite place in the world is Ten-erife, I only ever go and see movies that I rate a perfect ten out of ten, and I live inside ten ten-ts (they are inside one another like a series of Russian dolls) within a ten-ament building - alongside ten cardboard cutouts of the ten feet tall actor David Ten-Nant!
Lastly, when I go to the toilet I don't ever do a number one or a number two - I am compelled to do a powerful number ten! Think about it. Imagine what that must be like for me. It's awful.
Here's another thing I love that is to do with the number ten: a list of ten things. These ten things are how ten of the most famous video game companies got their names. How did my colleague "Ant" get his name? That's easy: he's obsessed with Antwerp! Coincidentally, he is also an twerp.