I’ll just start by saying that I like the alliteration in the title, but as I am English I shall be referring to the sidewalk as pavement from now on.
Living in Korea you need to be aware at all times of your surroundings. For instance, an unlikely place for unforeseen danger is the pavement. It is not uncommon in Korea to be dodging people, objects and even vehicles whilst using it.
My initial introduction to the perilous pavements here was my foot colliding with the curb. It took several weeks before my body and mind became accustomed to the marginally higher pavements and I stopped tripping up at just about every encounter.