My old stun method involved beating them against the tub. Because I LIKE animals, that usually involved more hits because I was too gentle when beating them against the tub. I beat one into stunned retardation that ended up NOT being eaten and he lived in a 20 gallon for 3 more weeks until he died of probably dehydration, cause he kept kicking over the water bowl. I know theyresupposed to have bottles but what the hell do they do in the wild? Anyway yeah in that case Im gonna keep on with my method cause none of the rats I feed are small enough to kill with a flick and I dont want to get tagged by a rat.