If you were putting up some shelves an had your dog an cat watching you, the dog would be thinking ' i dunno what you are upto but it looks ok' the cat would think 'I wonder what books he'll be putting on that!';):P

:-D :-D

Naaahhh!

The dog would be watching and thinking 'why nail a bone to the wall?'

The cat would be thinking ' Oh Good! Another observation point, don't forget to put one up near the ceiling now! and when you've finished a few ornaments would be very nice, they make a good sound when they smash'