Peraonal things....
Short thing: No
Longer version, it traumatizes the driver, the passengers, any bystanders, children, then cleanup crew, then maintenance people who have to remove "parts" from things, then police, and EMS in general. The only person who won't be traumatized is the coroner/mortician, and that's only if they've seen it before. Then taking away the mental issues (that yes, sometimes lead to some of THEM ctb'ing because of the trauma), you make people late, inconveniencing a lot of people for no reason other than to ctb yourself. And you may have shut down the train for cleaning, and stops, and... well so many, hundreds/thousands will be affected, and for no reason othat than you wanted to ctb.
Now "regular train"... same thing... seriously... they have to call people, shut down a line, postpone entire delivery... it's just.... no....
I really believe that if someone is going to, they should do something that minimizes the aftermath for others. But that's my personal thing. There's ways for that, but not this.