Don’t Feed the Hand That Bites you 

Don’t help someone who will try and harm or harass you.
Like being nice villagers in remote country who then attack you and as it suits them to receive aid and simultaneously fight you.

I told him Don’t Feed the Hand That Bites you as he was trying to to get on the good side of his upstairs neighbor that promptly dumped coffee on his laundry.

Don’t Feed the Hand That Bites you by fonty July 11, 2010