Take back the alley, if only for an hour

I have heard from some dog owners that a good way to keep the ‘activity’ down is to walk your dogs through the alley. This is not for every one and every alley. Another thing I was told, was cutting down the weeds and removing the trash, so the dealers would have fewer places to hide their products.
So for about and hour or so I took to cleaning a small part of my alley. I leave the regular maintenance to alley cleaning man, his broom, and his tersely written signs. I had a big garbage bag, some gardening gloves, some garden tools and a hatchet. For entertainment, music and an earphone in one ear, leaving the other free to listen out for cars that are occasionally known to drive through.
While I was cleaning and whacking down weeds I noticed a man on a cell phone near the mouth of the alley pacing by and looking down the alley. I got the feeling that if I weren’t in the alley he would have walked down it. Then a little bit later a red sedan, possibly mid to early 1990s model, started to turn into the alley. I moved out of the way, but it had enough room to change plans, and not come down the alley. About 10 minutes later, I swear the same car began to turn into the alley on the other end, backed up and drove away.
Well, 8 feet of the alley is now weed free-ish, and trash free, and whatever was to have happened in the alley thwarted.