Beware use pastelboard at your own risk!

I worried you for a moment then didn't I ?
I kinda feel embarrassed about posting this one but i knew you would get a laugh out of it so....

Yesterday, i suffered an injury while opening a packet of pastelbord. I was discussing something with my four year old, ( i cant remember what now maybe my brain was also injured?) so i was struggling to pull off the shrinkwrap around a packet of 9X12inch pastelboard. I was pulling and pulling and couldn't get the silly thing off, so i pulled harder and harder, when all of a sudden the wrapping gave way jumped out of the packet and hit me quite severly on the chin.
OWWWW it hurt i still have a lump on my chin today and i couldnt sleep on that side of my face last night (i sleep on my tummy) because my chin kept hurting when that side of my face was on the pillow.. so you heard it from me beaware of pastelboard its dangerous stuff!!!

Here is the photo to prove it (ok it doesnt look that bad here) but my gosh i can feel it.