A type of collar that involves a chain, where when you pull the leash it tightens up. That chokes the dog so they're more inclined to listen to you instead of getting choked again.

3OH!3 are fond of this device, as it helps then control their Pit Bull Lane.

Internet persona(s) who happens to follow you and you happen to follow them back and maintain communication with and have a mutual liking for eachother whether it be friendship wise, etc. (Mutuals if more than one mutual)

You raise a dog the same way you raise a child, by giving direct and rude commands, followed by correction.