A bad workman always blames his tools.
The unemployed always wind up at the bottom of the heap.
Even though Baikinman always gets beaten into the ground, he never learns his lesson and keeps doing bad things.
With the best of intentions, he made a mess of the job.
My wife is always complaining about something.
He did nothing but complain about his job.
He's always trying to reason a problem out [reason out the answer to a question].
the host is not always injured by association with a parasite