the garbage collector teaches a lesson

Garbage collection is serious business in Tokyo. There are many measures that encourage people to produce less garbage, including charging absurdly high fees to collect large disposed items such as old furniture and electronic equipments (up to US$ 200.00 depending on the size).
There's a very strict garbage collection schedule, a specific day in the week for burnable items, another day for non-burnable items, another for cartons, and so on.
Recently I left my garbage bag out according to the instructions I read in the city leaflet. Later, I saw the garbage collector pick up the bag but, to my surprise, instead of immediately throwing it in the truck, he inspected it, patting it all over. Then he put it back in the same place and quickly went away!
Puzzled (not to say another word), I went out to retrieve my abandoned bag and saw that the collector had stuck the note below in it. Roughly translated, it says something like: This garbage is not properly sorted out. Please sort out your garbage properly!
Oops!