David Mitchell whines about wine - video
After last week's attack on memorising waiters and the lack of a push-button system to get their attention, Mitchell turns his ire towards the custom of wine tasting at the table.
"It was fine when I didn't know any better," Mitchell says, but that no longer holds.
Furnished with the knowledge that a sip and compliment isn't desired and that he should instead offer an "imperious sniff" and "cold nod", he worries about looking a "complete arsehole".
Instead, Mitchell wants the wine-tasting etiquette to be transplanted to the pub for bitter and other real ales.
New episodes of Soapbox are available to watch and download via YouTube, Facebook, iTunes, downloadable apps and other formats.
Meanwhile, sponsors ChannelFlip & Dell will launch a competition on July 6 to find the "next David Mitchell" via the Comedy Spot website.
Winners of the contest will receive £10,000 and a year's development deal with ChannelFlip, including coaching with Mitchell himself.