My last 2 old English Sheepies were always together, and when the elder one Maggie had to be put to sleep, the younger one who had been with Maggie since she was 8 weeks hid behind the sofa for weeks. She only came out to go to the garden to empty herself, and for food but hardly anything. She passed away ten months later, I'm sure it was from grief, I really lost both my girls that day as wee Pashka never was the same. Losing them both like that brought me to my knees.