Zoom... 25 years ago I left an MBONE service running unsupervised and changed roles. 6 months later a colleague sent me the dic pix that were being shared in low-fi B&W slowscan MBONE video.
Reaching back even further, we were told in the very early 1980s by the University of York computer centre that all line printer overstrike images were henceforth banned, after it was noted the operators had printed a reasonably hi-res full length nude, burning at least one ribbon to shreds doing it. I think it was 6 sheets of fanfold in 3x3