I walk north aggro wolf attacks me so i tame him. I move south kill another mob then camo and same wolf arrives and attacks me. I can't tame him again and get the message "A wolf is not usually agressive."

So even if a mob doesn't see camo they all track you and reattack when you step out.

I guess you can use it on mobs that can't see camo. Creep and tame before they attack. Not sure if they become aggro again though.