Scout Bomb Then Until They Get Used To It (couple of hours) Hire An Ally. See If They Hire Back/Attack You. If So You Know They're Awake. Keep Scout Bombing Until They're Asleep. Hire Ally And Steal And Attack. Hire More Allies If You Want.
Find their downtime works best, buy an allie then strip, drop allie, then have someone else to scout bomb their history to hide who bought the allie off the person you are stripping.