she just gets really bored when we are gone
exactly.
it's absolutely normal (but shitty) behavior for a young dog to have separation anxiety at that age.
and that manifests itself as chewing, remember it's sorta the same as people playing cards, video games, etc,
their mouths are their hands so they get "bored" and coincidentally it happens to coincide with teething time too.
Sooooo you end up with furniture-shrapnel everywhere
if she is a real strong chewer (most rottys are) and the other dog isn't a dominant you can usually get cow femur bones from the butcher, best unfrozen, and with the ends cut off, give each of your dogs one of those after lightly cooking it for like 40 minutes at 275 deg or so
just to sorta sterilize it a lil
then get a blanket that you don't care about (it's juicy at first)
put the bones on the blanket and BOOM let em have it
depending on your dog that'll keep em occupied for days
and even after that you can get a disposable pair of chopsticks to dig out the bone marrow in the middle, and the bone is "re-newed" and they go to town again..
I do NOT recommend using pig femurs, they will chew that and splinter it, and that's potentially dangerous.
no canine is gonna splinter a cow femur though
well, past wolf hybrids and hyenas
Shit my house looks like I house a dragon in there, got probably eight or nine chunks of gnawed bones..
whiiiich are quite pleasant to step on in the middle of the night..