[emeritus]

Re H&S, not just fingers! In the early 1970's we changed the genuine Teletype terminal we used at work for accessing a timeshare computer by an Olivetti that used a constantly-rotating lay shaft for driving its array of wheel-type print heads. Its elapsed time indicator was accessed by lifting the sound-reducing lid, and when our lady mathematician bent down to read it ( the display was vertical, so you had to look sideways) her long hair got caught by the rotating shaft and dragged her head into the innards. Fortunately she had the presence of mind to operate the on/off switch in time to prevent serious injury but had to feel for the telephone to summon help as it was in a soundproof room.