Is it finished?

app> "Be careful about using the following code -- I've only proven that it works, I haven't tested it"
app> lol
JoTo> huh? how can he proof it works when he didnt start/test it? Play he computer himself going thorough the code only in mind?
app> that's why i thought it was funny
JoTo> that reminds me of a sentence of a collegue of mine here. A few years ago he worked on a application project...i meet him at the coffee machine and ask him: "Is the application finished yet?"...he replied: "Yes, finished! But it is still crashing!"