> The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", > "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this > document are to be interpreted as described in [RFC2119] when they > appear in ALL CAPS. These words may also appear in this document in > lower case as plain English words, absent their normative meanings. i like this a lot randy