I do. You're saying you see your code as a personal posession, whose structure you know and understand. You're saying it doesn't matter how easy your code is for somebody else to get their head round because, like your sock drawer, you don't imagine other people will go rummaging around in it.
It's not an attitude I approve of in colleagues, for obvious reasons. Fortunately it's a long time since I've had to work with anyone that thinks that way. They don't survive in workplaces like mine.