Jreade...gotcha. That's interesting, and something I never considered. I haven't had that happen (knock on wood). I'm taking a class now, but it's a night class, so I think the rack is less over populated. The rack i use at work can get crowded, but it's an older, professional crowd who are pretty courteous for the most part.

Side rant - it drives me NUTS when someone uses the side of the rack spot for their POS Next that easily has the clearance for the wheel to clear the top of the rack. Save the side spots for those of us with fenders and/or tight clearance!