Now that you mention it — V8 has an interesting bug with excessive Number#toString() decimal digits (http://code.google.com/p/v8/issues/detail?id=1627).

For example:

    (1.1536999999997645e-10).toString(33).match(/[a-z]+/g)[81]; // 'oops'

More here: https://gist.github.com/1153826