DIY Littering Sign

Right next to the "No Dumping - I Live Downstream" markings from my last post, I saw this washed-out attempt to "Stop Littering".

I must have walked past this dozens of times before realizing it was there.  Whoever sprayed this mish-mash of upper and lower case letters was obviously conflicted.  I mean, they clearly think littering is bad but their graffiti is okay?  Let's stop people from making this corner an ugly place ... by making this corner an ugly place.