An off-duty policeman's gun went off twice as he pulled down his pants to use the toilet, injuring a man.

Officer Craig Clancy was attending a car auction in San Antonio when nature called.

As he undid his trousers, the gun fell from its holster.

Officer Clancy tried to catch it, but accidentally fired two bullets when his finger grabbed the trigger by mistake.

Police spokesman Gabe Trevino told KSAT news: "As Clancy tried to stop the gun from hitting the ground, his finger entered the trigger guard, which cause the weapon to go off twice.

"The first bullet went through the wall of the cubicle and through the pants of a man, grazing his leg."

The injured man, who was washing his hands at the time, was taken to hospital.

The Texan police department for internal affairs is investigating the incident.

Now, I'm just a Canadian who's never had experience with a gun before, but don't most guns have a safety so that this sort of thing doesn't happen?

True, but first the owner of said gun must be intelligent enough to turn the safety on. Though I can see how it'd be confusing, since you'd have to know which way to flip the little switch and all. ::shakes head:: Some people are just.... special.