Where ARE you??

Mortimer, where have you gone??
The rule is that when you are out of the cage you need to stay in physical contact with me so I know where you are.
I swear I just sat down to do a few minutes' computer work... now my neck is empty...
(Hunt, hunt.
Not in the bookshelves.
Not under the bookshelves.
Laying down flat on the floor, not a scale in sight...
Look up a little...
AAGH!
There you are!!)

You are in so much trouble, young man!
You just don't seem to realize it.
In fact, you look pretty pleased with yourself.