Air quotes (for Forsooth)

If people put up two fingers on each hand for air quotes, why do they gesture twice? I ponder shit like that..


Here are a couple of Flickr pools with photos of signs that have words in quotations for no reason, and non-possessive plurals with apostrophes (also known as the "grocer's apostrophe."). Here's the quotation page and here's the apostrophe page.