I think the monkey's just biding his time before attacking.

how do we know the monkey didn't adopt the dog?

the monkey could be whispering all kinds of useful advice into the dogs ear.

that is one lazy monkey.

There's one shot where the dog just looks miserable....

well, he's got a real monkey on his back.


with that comes misery.

actually, the first thing I thought when I saw that Dog was that Hercules story where he helped that old man across the river.

Turned out to be a demon or something, and wouldn't let go for days.