This is bizarre:
Apparently, Yahoo's free webmail services
silently change your words around when you send mail from them, in an arbitrary way. "mocha" becomes "espresso", for example, and "expression" becomes "statement". Though as it hyphenates "javascript" and bowdlerises some HTML tag names, the most likely hypothesis is that it's a hamfisted way to defang tags in outgoing HTML email.
(via NtK)
Didn't change anything when I tried it...
"We had an evaluation of our javascript expression database over mochas" came out fine ???