The other day we were leaving the house early, so that it wasn't light, and guess what I stepped in!
Some clown has been going about letting his/her dog leave little piles, very often just outside people's gates, which makes me wonder if it is being done on purpose.
I know that spraying the piles with something bright both warns innocent pedestrians and has a shaming effect on the half-witted dog owners, but I don't know what to use. Ideally it should be something which will wash away before too long, so not paint. Can you get spray-on fluorescent hair-dye, or something like that? Any ideas welcome, and thank you in advance.