stroolean

In Computer Science, a string representation of a boolean variable. Stroolean is a magical data type that contains a third state that is neither true nor false, yet empty (or null).

1) WTF, I received a boolean value from a client web service and it was neither true or false.
2) Was the actual data type a string or a boolean?
1) String...
2) Did you account for nulls or empty value?
1) Damn it, stroolean got me again...