I've been in Edinburgh for a whole week and the word "litter" has barely passed my lips. I may have whispered it gently into the ears of an intimate few but that's all.

Here though is a manifestation of Dirty Scotland that has me scratching my head in despair and disbelief. Rubbish disposal is well organised at the flats where I live. Here's how it works. In the privacy of your own home you collect your domestic waste and when you have a bagful you go to one of the bin-stores, put your bag in the bin and once a week the bin is emptied and cleaned.

So what is this cretin's game?Was the bin full? No. Was he a dwarf who couldn't reach up to the lid? Unlikely. Was leaving the gate open a final fingers up to the responsible residents? Undoubtedly.

Unfortunately none of my windows overlook this bin-store otherwise I should mount a 24 hour watch with my litter lout laser at the ready.