Congratulations on making it 40 years + without ever working with idiots.
If you're saying modern CRTs don't implode, there are about a dozen Youtube videos that would prove you wrong.
TV type CRTs have an implosion band/strap to help prevent it from happening. However, if you've ever worked on a maritime RADAR PPI display from before the raster scan era, you would know that the old round P7 phosphor tubes were very fragile. Same with certain high resolution P5 phosphor CRTs used in film recorders prior to the advent of Powerpoint and LCD projectors. Oscilloscope CRTs vary. It always seemed the more expensive the tube, the more fragile it is.
Now when it comes to safety, this attitude of "it can't happen" is exactly what gets people injured or killed. The chance of someone reading this and then working on an old scope or antique TV are quite high, so you are doing them a disservice by saying there is no hazard. I will agree that the odds are pretty slim; but they multiply rapidly in the presence of idiots and untrained personnel.
The point is, when you're working with this stuff, think ahead, be extra mindful of yourself and your surroundings, and don't take anything for granted. Think about the process before you loosen the first screw, for example, where are you going to set this thing down once you get it out of the case, so it doesn't slide off the table and hit the floor? You don't have to be frightened of a CRT, but it is best to have a healthy respect for them and treat them with extreme care.
In my experience there are only maybe two things more hazardous in the electronics field than a CRT: one is transmitter high voltage - particularly multi-kilowatt power amp B+ where if you're working with the interlocks disabled you need to keep one hand in your pocket, and the other is tower climbing. I have lost two friends from collapse due to structural failures on small towers on two separate occasions. Neither were professional climbers and in both cases it was not their own but a friend's tower that killed them.
I was going to mention the PPI CRTs,but considered it unlikely for beginners to come across them---perhaps incorrectly,but I have not seen anything similar available to the general public in my country since the late '50s,early '60s.
Enthusiasts used some of the early small & large electrostatically deflected tubes for home made TVs.prior to the availability of proper TV CRTs,& I remember seeing one very big old Brit radar tube fitted with a TV deflection yoke---don't know if it worked though.
Of course,a lot of these enthusiasts were ex military,& knew how to handle them.
I've handled most of the other tubes you refer to,but,as I said before,they are less hazardous because of their smaller size.
We used to chuck TV CRTs that weren't up to re-gunning into a big dumpster.
That very rarely broke the tube neck,so we would smash it with a long "star picket" or piece of pipe.
A gentle sigh,& that was it--no huge spread of glass.
We found some 12" tubes out of 1950s monitors,which did smash on impact ,but not a big bang--no glass flying.
You say
," You don't have to be frightened of a CRT, but it is best to have a healthy respect for them and treat them with extreme care."Reading your original posting in isolation would scare people off having anything to do with CRTs,or even small receiving tubes.
In order of hazards,I would put them well behind:-
Transmitter HT supplies,
Transmitter aerial interlock supplies----sometimes these are several hundred volts & are still present on the supposedly dead Transmitter--Ouch!-- That hurt!
3 ph Mains in all its forms
Single phase Mains
Switch mode supplies
Ladders
Ladders & Mains--nasty shock,nastier fall!
Lightning----I know,it is unlikely,but setting up an OB link on a hill & seeing a lightning strike about a hundred yards away persuaded me to delay the setting up for a while
All the towers I've climbed have been big ones that had been there for years & weren't going anywhere,but I remember a friend in the two-way radio side of things telling horror stories about small towers.
As a poor Ham,I've never been able to afford a proper tower.