爱屋及乌 aì wū jí wū ------ to love a person even love the crows on his roof . 爱 aì ( love ) , 屋 wū ( house ) , 及jí ( and ) , 乌wū
( a crow , the bird has been regarded as a bad luck bird according to the old Chinese tradition ) . This idiom is similar to the English expression “ love me ; love my dog. ”