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at which time you progress form Young to Mature - next step, Guppie (Geriatric) - ain't that right TLH?
Now - back to puppies...
I had a bull terrier / blue healer cross - she'd scare the crap outa anyone, but never hurt a soul. I've seen her a sleep when a Western Power bloke walk through the gate - she woek and ran up to him barking up a storm, fur standing on end and dropped onto her back about one foot short expecting a pat on the tummy... Poor bloke looked like he needed a change of underclothes afterwards ...