Not my best with this but its a start I guess.
Guardian the old germen sheperd meets Kayzoo as a cub.
just one of the many ways of how thay would meet.
If any one would like to give adivce about how this should have turned out I would love to hear it. I dont know much about comics but I am sure one of you guys would know more then me right now. I could learn from you then what I know.