Would-be robber drops his gun, then pants in e-cigarette store

An armed man in Colorado appeared to have everything he needed to pull off a robbery except competence and nerve.

It happened at an Aurora e-cigarette store on Sunday

Surveillance video shows the man pulling a weapon which turned out to be an airsoft gun out of his waistband and then quickly dropping it behind the counter.

The gun fell to the feet of the store clerk, who picked it up.

The man tries to jump the counter, but takes off running and as the suspect ran away, his pants fell to his knees.

Police are now trying to identify the jittery robber and arrest him.