The bulldog is not allowed in the house.
Okay, the bulldog is allowed in the house, but only in certain rooms.
The bulldog is allowed in all rooms, but has to stay off the furniture.
The bulldog can get on the old furniture only.
Fine, the bulldog is allowed on all the furniture, but is not allowed to sleep with the humans on the bed.
Okay, the bulldog is allowed on the bed, but only by invitation.
The bulldog can sleep on the bed whenever he wants, but not under the covers.
The bulldog can sleep under the covers by invitation only
The bulldog can sleep under the covers every night.
Humans must ask permission to sleep under the covers with the bulldog.
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