He-who-hits-on-me-without-portfolio has been given a nickname in my inimitable personal lexicon now. There is some confusion as to what, exactly, his name is: it says one thing in one computer system, another in the other, and I do believe he may even sign himself with some third completely different thing (that shares enough in common with the other two to generate even more confusion). Through my usual scheme of skipping around to find a related-but-unrelated name, I have settled on the tag "King of Birdbrains".
King of Birdbrains is not entirely unlike the Master of Misinformation. From what I gather, the Master of Misinformation, while loud, obnoxious, creepy, and sometimes unwarrantedly hostile, is so because he was born out of sync with most of the rest of the human race, and it looks like only intensive therapy and perhaps medication have gotten him to as social as he is today.
The King of Birdbrains may have social issues, but they're the issues that come of being too outgoing, charismatic, and flirtatious -- with ulterior motives and without the follow-up social or workplace steadiness that make charismatic into a positive thing. He seems to have noticed me and decided that I am the perfect target for his charm, which overjoys me no freaking end concerns me some. He hasn't been showing up for his regularly scheduled shifts, let alone some of the extra ones he signs up for. A good supervisor finds any attempt to schmooze to try and not get zinged for attendance with that attendance record annoying.