I live on a corner lot in a middle upper suburb (houses are side by side). About 2 months ago - I saw a man using our hose and washing his hands. My thoughts were - "maybe he's working at a house, got dirty hands and needed to wash them"....that's fine. Another time he came by when my H was outside and again wanted to wash his hands - my H didn't know he was here before. Last night around dinner hour, my youngest (10 yrs) was playing sidewalk chalk and I got the feeling to look out the side window and I see the same guy walking down my driveway. I thought it was one of my H's helpers, because we're doing landscaping and I don't know half the time what he's doing. At the same time my daughter came in and she said its the same man - he walked up and she went right away in the garage - he said "I'm gonna wash my hands again".
My H comes home and I discussed it with him and he confirmed the man did this twice when he was home - 4 times total.

The 1st time I thought he's just a worker who needed to wash his hands, but he's not a worker - he lives around here.....so I can't think of a reasonable explanation to use our water and not his own. My daughter said he walked down, used our water and went back the same way. My daughter plays outside often and I told her to come in immediately if she sees him.