UPDATE: The video’s up of Wednesday’s “Chronicle” segment on inventions. Here’s the whole story, and here‘s the segment with Mr. Improbable — and Milo! (In this segment, Mr. Improbable is teasing Milo with a broom so that he will bark and demonstrate the effectiveness of Bow Lingual, the dog-to-human translation device. Don’t worry. Milo had fun.)

[From Wednesday] If you’re a Boston local, tune into Channel 5′s “Chronicle” tonight at 7:30. They are doing a report on inventions. Mr. Improbable will describe some Ig Nobel Prize-winning inventions, and Milo will demonstrate a few, including Bow-Lingual and Clocky.

Those of you who aren’t “Mad Men” fans, or at least fans of the cool sleek lines of early-60s design, are going to have to be a bit patient with me for a while, I’m afraid. I’m fully in the grip of “Mad”ness! I’ll be doing the photo shoot to enter the contest for a walk-on role this weekend. You can only submit one picture, I think, so I’ll post a few up here and ask you to vote.

In the meantime, I went to madmenyourself.com again and did one of Mr. Improbable. Here he is, at his first day at Sterling Cooper. They hired him because they thought his quirky sense of humor might help them land more high-tech accounts … of course it’s ridiculous to think that people will ever have computers in their homes, but the secretaries sure love that new copier, so maybe these “business machines” are the wave of the future.

This is nowhere near as good as the Simpsons version of Mr. Improbable, but it still works. I like how it looks like Mr. Improbable is thinking, “Um, I should have worn a suit? And shaved?” which is an expression I’ve seen on his face all too often.

Everyone else is thinking, “Who hired the Jew?” Except for Joan, who is checking out his butt and thinking that he might clean up nice. Hands off, Ms. Holloway!

Today’s column addresses the awkwardness of repeated hallway meetings in the workplace:

During my workday I make multiple trips between my office and other rooms in the building. I often pass the same people in the hallways several times. After the first direct greeting each day, I feel awkward if I do not say something to acknowledge them as we pass. I sometimes have something business-related to mention, occasionally something witty, but always a nod and smile. Is the last response acceptable, as multiple “hellos” each day seems weird?

I tweeted earlier today that this question is “very Simon/Sacha Baron Cohen.” The Baron Cohen cousins are among the world’s most renowned scholars and practitioners, respectively, of the awkward moment. Mr. Improbable explains it all for you.