"A flash mob (or flashmob)[1] is a term coined in 2003 to denote a group of people who assemble suddenly in a public place, perform an unusual and sometimes seemingly pointless act for a brief time, then disperse, often for the purposes of entertainment and/or satire.[2][3] Flash mobs are organized via telecommunications, social media, or viral emails" -wiki
So... yeah, preparation for a flash mob is relevant to the mob's goal.
"A flash mob (or flashmob)[1] is a term coined in 2003 to denote a group of people who assemble suddenly in a public place, perform an unusual and sometimes seemingly pointless act for a brief time, then disperse, often for the purposes of entertainment and/or satire.[2][3] Flash mobs are organized via telecommunications, social media, or viral emails" -wiki
So... yeah, preparation for a flash mob is relevant to the mob's goal.
Love machine, size L
Lawn aerator. Goes on your foot. Wear two, walk around the yard.