There were a few more, but some had to leave early. That rear flash had not fired on any of the previous shots, so we didn't expect it to go off this time either, but it did, somewhat annoyingly.
Strobist info: Vivitar 285HV camera left at 1/4 (?), pale gold gel, Canon 430EX in shoot through umbrella, camera right, Canon 430EX? rear of group, purple gel, unknown flash accidentally fired at rear.
View all photos taken: Sunday, 16th March 2008, This photo: 7:22pm