I got a bit flustered at this snippet here:

>Notice anything off about that XML? If you said, “value should be 0 instead of False”, then give yourself a pat on the back.

Because text values can be valid XML for Boolean values. According to the XML Schema specification:

    3.2.2.1 Lexical representation
    An instance of a datatype that is defined as ·boolean· can have the 
    following legal literals {true, false, 1, 0}. 

    3.2.2.2 Canonical representation
    The canonical representation for boolean is the set of 
    literals {true, false}.

So a better correction would be 'false'.