In these situations I sit back and ask the question 'what would Jesus do?'
I believe that Jesus would drown them.
Tinkerbell and Snowball could be demon possessed if they have attacked your children. I think that Jesus's preferred method of animal execution was drowning.
Mark 5:11 Now there was there nigh unto the mountains a great herd of swine feeding. 12And all the devils besought him, saying, Send us into the swine, that we may enter into them.
13And forthwith Jesus gave them leave. And the unclean spirits went out, and entered into the swine: and the herd ran violently down a steep place into the sea, they were about two thousand and were choked in the sea.
This may have been due to practicalities though. There were 2,000 pigs that needed killing and it would have taken ages for gentle Jesus to have individually smashed their skulls in with a rock.
YIC
Jack
Genesis 22:2 And he said, Take now thy son, thine only son Isaac, whom thou lovest, and get thee into the land of Moriah; and offer him there for a burnt offering upon one of the mountains which I will tell thee of.
I know God wouldn't let me believe in Him if He didn't exist.