A Readers' Digest poll found that the one thing that
annoys people the most in Belgium is dog poop.
The linked article doesn't provide any specifics. But let's rationalize this.
I doubt there is anything psychological or physical about Belgians that make them particularly emotional about dog feces. My sense is that there is an awful lot of dog poop on Belgium's sidewalks and parks. If we here in the USA had dog poop strewn all over our walkways and parks, we'd be just as annoyed too.
So, I'm going so far to say that in Belgium, dog owners are less responsible. That seems to go along with my general concensus of Europeans, that they have a lower sense of personal responsibility, hence they tolerate "big brother style" governments.
Give me some time, and I can turn anything into a political statement!