I have a 14 year old aussie who is now deaf, if she's in a dead sleep,,oh yeah, tough to wake her up. I'm like you, I think, "oh my god shes dead or dying!". She'll wake up and be fine..
I'm sure it has something to do with them being deaf as well in a deep sleep..
Danger Danger vom Kleinen Hain aka Masi
"Angel" Jakoda's Bewitchen Sami CD OA OAJ OAC NGC OJC RS-O GS-N JS-O TT HIC CGC
"Angel" Steinwald's Four x Four CGC HIC TT
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"Angel" Jakoda's Jagged Edge