I tend to agree that Java's checked exceptions are annoying (hello SQLException). However, when I used C# I was annoyed that the VS intellisense and the C# generated documentation didn't tell me what exceptions might actually be thrown! In practice this meant just not handling anything at all.
That's because the developer didn't put the exception into the documentation. But at the same time you really shouldn't rely on that because something down the line could throw an exception that isn't covered in the documented exceptions.
