If there is one thing we can learn from the Justin Bieber signing cancellation riot, it’s this:  don’t piss pubescent girls off.

It seems the camp of Usher’s protege did not anticipate having 1,000 screaming girls show up for a signing at Roosevelt Field shopping mall in Long Island and in fact only expected a couple hundred (he showed them, huh?).

Mall security was unable to keep the crowds under control, the venue was then deemed unsafe and they would not bring Bieber out (these pictures are of him arriving at the MTV Studios and the tongue shot kind of disturbs me and makes me think, oh great, another Miley Cyrus).  That didn’t sit too well with hormonal 13 year old girls.  Like it would with any hormonal female, but pubescent girls? Forget it.   Once it was announced he wasn’t coming out the riots started.

The worst part is a young girl was hospitalized as a result of the insanity.  According to TMZ she is thought to have suffered only minor injuries.  Justin took to Twitter to plead with his fans:

“The event at Roosevelt mall is cancelled. please go home.  The police have already arrested one person from my camp. I don’t want anyone hurt.”

Remind me not to have eye contact with young teenage girls.  They scare me.

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Photos:  JDH/JCP/www.wenn.com