Who knows how dogs think? I don't claim to. But as he's become more trustworthy with Roo, we've let Charlie have it more. He carries it everywhere. And I think he's now putting it to bed. At least that's what it looks like.
Almost every night, after "saying 'goodnight' to the yard," Charlie will pick up Roo and carry him into the bedroom. He then jumps on the bed, goes to the head, paws down the covers and drops Roo on or about the pillows (which was a lot cuter before Roo began taking on the color of Iams minichunks). Sometimes he even, and I swear I saw him do this once, pulls the covers back up over Roo... tucking him in sweetly.
I don't know what it means. I just report the facts. But it's pretty cute to watch. And it'll be even cuter once Roo gets a bath!