no harm done
Used to express that someone's action had no serious adverse consequences.
Well, you painted my room the wrong shade of blue, but no harm done really.
Out and down in the colonies, life can be indulged, life and sensuality in all its forms, with no harm done to the Metropolis, nothing to soil those cathedrals, white marble statues, noble thoughts. Thomas Pynchon
If I steal money from any person, there may be no harm done from the mere transfer of possession; he may not feel the loss, or it may prevent him from using the money badly. But I cannot help doing this great wrong towards Man, that I make myself dishonest. William Kingdon Clifford