Forumites Count Off

Usually shouted out by someone organizing an activity that depends on knowing how many forumites are participating e.g. Diner Run. Also used as a rallying cry for large numbers of Forumites as a show of solidarity. The caller asks loudly something on the order of 'we need to know how many of you are going to the Diner' and follows with "Forumites, Count Off!". The traditional answer from everybody else, refusing to obey even the most simple or logical request, is to shout in unison "ONE!".