Originally Posted by leashedForLife

Beagle attacks Rott
the GSD is very apropos + wants only to play - the TERRIERIST-mix is scared, uncertain,
very threatening, vocal - ATTACKS the GSD from ambush, the GSD converts it to a game,
but notice the puppy bites so hard repeatedly that the GSD yelps at one point.
does a lot of self-calming, shakes-off, disengages, does NOT laugh-pant -
listen to the GSD U can clearly hear the irregular laugh-pant of a happy, non-threatening dog.
the Terrierist-mix is mostly CLOSE-mouthed (tension) and growling, not laughing.
he is playing, but frightened.
this Chi-mix is a dog that i would fully-expect to be difficult life-long with other dogs,
ESPECIALLY same-sex; if i saw this in a clients pup, i would suggest that they talk to the vet
about both the behavior + desex between 4 + 5-MO; a toy-dog matures physically faster,
and his legs epiphyses will be closed by 16 to 18-WO.
the less spike in his testosterone, the better as he goes into puberty.
he will IMO need some behavioral intervention - the longer it is delayed, the worse his dog:dog behavior,
and the more intensive, complex + slow his B-Mod.