Your dog, because it'll stop barking once you let it in.
A subwoofer.
How do you make a dog say meow? Put it in the freezer, then get a chainsaw and cut it. MEEEEEEEOOOWWW!!
It was armed.
It was a Freudian slip
Because it was two-tiered.
Take off the chain and both stop working. Going straight to hell :)
All bark and no byte
a sub-woofer!!!