my misses sent me an important letter, i waited and waited for it, 3 months later my misses got it back , the Post office had written on it unknown address - return to sender, the lazy at the post office could have checked the post code, my misses put a 1 instead of a 7 as part of the 3 digit house number, but the rest of the address was right and i'm one of only 2 people in the country with the same surname