Is 25 too old to be walking around with nerd shit on my messenger bag? I just got a new messenger bag for work*, and I couldn't help adding a few things to it to make it more interesting. I'm starting to worry I'm too old for this, though. Please tell me I'm not.

*I'm a production assistant at a TV station, and my department is extremely laid-back. Hell, I'm wearing a T-shirt and jeans to work today.