I just broke a fan blade off one of Scythe Ultra Kaze 3000rpms

I had it on my IFX-14 and the fan wasn't starting up. I restarted a bunch of times and it still didn't start, so I took it off and up it on top of my Antec 1200, i didn't unplug it cause the plug was on the cable management side of my pc and i'm lazy. So I left it plugged in and sat it on top of my case. The when I started the pc back up, guess what the **** fan started this time and it hit the my case and broke a blade off

Is it normally for a fan blade to break that easy?