Ditto. I've had it happen to me. I've had squibs on a number of occasions. usually due to a malfunctioning powder dump on a reloader.

While I've actually caught squibs more times than I can remember in an autoloader (then again I used to shoot a frightful lot - on the order of 3-400 rounds a week.). Normaly you just catch it, clear the gun, then go offrange to pound it out of the barrel with a dowel. I did manage to not catch one once, rapidly jam-clear and cycle the slide on a .45, and then notice a much heavier recoil on next shot. "whoa" I thought and stopped. sure enough, bulged the barrel about 3 inches forward of the chamber.

Fortunately, you'd be surprised at the strength of most guns.