Fur
Bumper replaced his dog.
He set the latest in artificial intelligence to work.
Stroked the laptop's monitor.
Then informed the machine the action had taken place.
He found the experience to be lacking.
Set about shaving a neighbour's dog to resolve the situation.
He slathered the harvest all over his laptop.
Gave the petting another shot.
Eventually fur clogged the fans and he burnt his house down.
He had to explain to the fireman who was a woman that his dog burnt down the house.
And in addition that his dog was a laptop.