The number read in Korean ("one thousand and four") has the same pronunciation as the word for angel: both are 천사 ("cheonsa").
http://translate.google.co.kr/?tab=wT#en/ko/one%20thousand%2...
http://translate.google.co.kr/?tab=wT#en/ko/one%20thousand%2...
You could argue one thousand four is actually easier to misinterpret because it could easily (although incorrectly) be read to mean "one thousand fours."
edit: typo.
100 2/3
102/3Just to make it worse for you: why don't people also pronounce 1492 as "one thousand and four hundred and ninety and two"?
100 2/3 - one hundred ... and two thirds
102/3 - one hundred and two ... thirds
Alternatively, use "plus" instead of "and" in the first case.
100 2/3 - One hundred and two-thirds. 102/3 - One hundred two over three.