Oh, the dreaded IRIS! Rumours of their being out and about spread quickly and comms procedures improved markedly! ... unless, like one unfortunate, who was already airborne when they arrived unexpectedly. He was engaged in a 'difference of opinion' with a ground station and added a non-approved rider to his final message. IRIS picked it up and the culprit was summoned to explain. His attempted defence, that he was only making a closing remark for future contact -"See you next trip" (in brief form), was not accepted
and wrath descended!!