Happy is a visiting dog, camping out while his person recuperates from surgery. He likes to hide chews. If he can get them outside without my noticing, that's perfect, because then he has the whole yard at his disposal.
In the house, he's a bit limited.
There simply aren't many places for a 70# dog to hide a bone, that two other 70# dogs, let alone a 9-pound tiny dog, can't find.
He appears not to recognize that Abby usually sleeps on that cushion. She likes chews, too, and she will certainly be able to sniff it out before tomorrow morning.
Yesterday, he hid a chew in the toilet bowl.