Look at this picture and see if you see anything strange about it.
We took this picture on the way home this evening. Two signs are one way street signs going to the right. There is a don’t turn left sign to help you avoid going the wrong way down a one-way street and then there is a left lane must turn left sign, which would appear to send you the wrong way down a one-way street. Once you get up the road a little, you see the left lane must turn left sign is for the next intersection but its placement here could certainly cause an accident. Sending mixed signals can be harmful. Do it once and people will get over it. Do it repeatedly and people will learn to distrust your communication, never knowing what is really going on and no longer seeing you as a trustworthy perspective on what is going on.