To the tune of Barney's theme song:
Lock and load, rack the slide,
There's no place for him to hide.
One smooth squeeze and Barney hits the floor,
No more purple dinosaur.
Assuming Barney came out of the T.V. and was chasing my kid, I'd probably turn my son loose on him. Formerly know to our family as Mr. Destructo, my 2 1/2 year old has been promoted to Captain Destructo. I'd back him up with the .308, though. Just in case.