That's fun and all, but how do you know they don't actually a ride a bike? You can't be sure, can you? I walk around campus after locking my bike. Do I need to be in full kit and clipless pedals with a helmet clipped to my bag strap so that everyone can tell I'm a sw8 hipster cyclist?

Also, there have been occasions that I've not ridden my bike to school, am I supposed to have a different bag for that?