DH and I took the girls to the park today. There was a sandpit in the shade so my oldest went for that, and the middle daughter went to the swing with DH.
DD1 left her flip flops with me to get in the sand and this woman waits a few moments and then says "You really should get her different shoes. Those aren't good for their feet". I smiled at her. Then she adds "You can get better shoes at Goodwill if its a money issue"
Again, I smiled, and simply got up and went to another part of the sand pit.