Earlier this week, BoomTown pointed out how Cisco (CSCO) Chairman and CEO John Chambers was captured doing duck calls on the Flip digital video camera, made by the start-up his company bought in March for $590 million.

That was an adorable use of the consumer electronics device. But in the not-so-cute department, I submit this photo above.

Sitting next to her boss, Barbara Walters, an ABC producer used it to ghoulishly take shots of the kids of pop legend Michael Jackson memorial service on Monday.

Noted the TMZ celebrity news site:

“During last night’s ’20/20′ Michael Jackson special, Walters showcased footage shot by an ABC producer sitting next to her at the memorial. The video captures Katherine Jackson and Michael’s kids two rows in front of Barbara watching the service–despite the fact that tickets to the event clearly state ‘no camera/video/recording.’”

While readers of this blog know I am all for annoying execs with the Flip treatment, pointing and shooting at what is essentially a funeral service, given how much video was available already of those kids (already being sadly overexposed, but that’s another issue): Yuk.

Here is a link on the TMZ of the video in use by Walters.

[Photo courtesy of Getty Images.]

What hath the Flip digital video camera wrought?

Well, for one, getting to see a major Silicon Valley tech exec do duck calls online, that’s what.

Cisco (CSCO) PR guy John Earnhardt, who is obviously studying technique from BoomTown’s shaky-cam video style, caught company CEO and Chairman John Chambers quacking away in his office.

And, of course, he then proceeded to capture the moment on the popular digital video recorder, which was made by the small and innovative San Francisco-based Pure Digital that Cisco bought for $590 million in March.

Wrote Earnhardt on the company blog:

“I was sitting at my desk a few minutes ago when I heard a duck call echoing down the corridor. Then, that inimitable John Chambers laughter. With my trusty Flip Mino HD video camera in hand I strolled into Chambers office to capture the duck call for you, our loyal readers. His lesson was brief, but it is very clear that he is a man of many talents.”

Well, that’s the Cisco PR spin on it, at least! (My spin: Chambers is one wacky dude.)

Cisco is now calling for duck call competitors to challenge Chambers on its blog or at its PR YouTube channel.

The best duck call gets a free Flip Mino CD from Chambers.

Here’s the video of Chambers in Daffy Duck mode (and below it is the full video of the demo that Pure Digital did at this year’s seventh D: All Things Digital conference):