Typically, both Mr. & Mrs. S. try to photograph the action when they are flying solo, but often are unable to do so. Since we are unsure how many undocumented encounters we have had, these encounters do not count in the numbering system. In other words, the numbering is lower than the actual number of encounters. In the case of Mrs. S.’s solo encounter at the shop on 10 November 2021, she did document that there was an encounter, but not the encounter itself, so the “depositor” counts as part of the numbering system as IL Dude #1.