This May Explain It

Coop Syndrome (Theory) - When the sum of people at a gathering increases, the intelligence level of all participants proportionately decreases. It has been my experience that even people you know very well, may not be able to resist this condition. Side effects may include but are not limited to; talking and/or arguing outloud with oneself about nonsensical or irrelevant subject matter, waiting in a fictitious line, and missing the grand finale because they needed to leave half way through the event to "avoid traffic". In some rare cases violent reactions have occurred such as combative behavior, generally initiated by the ailing yelling something to the effect of "what are you looking at?" Treatment; Remove ill from the masses and seclude them in an area at least 20 feet from any other object for up to 6 hours. Wait for unwell to exhibit signs and regain normal reasoning skills.