Wow, maybe I was just lucky?
I worked on two different (energy) trading floors. One was a fairly large venture (30 or so trading desks + mid/back office + dev/ops/DC teams + management). The other was one of the huge banks. Both were in Stamford CT.
I spent well over 5 years there and never once did I see those sorts of shenanigans.
There was some stuff: the guy that liked to throw a football across the floor, occasionally smashing a monitor; the guys that bet $1000+ each over who could lose the highest % of body weight in 2 months (or was it one month?); and the occasional swearing, but nothing near the "like a sailor" level I hear about.
Pretty much everyone I worked with was highly professional. They were profit motivated (for sure), but even there I personally witnessed people making fair deals where they could have squeezed someone dry and unwinding deals at a loss to keep a good counterparty relationship.
I'm so glad I never worked with the handset smashing, drug abusing, loudly swearing, king of the world, type-A assholes that I hear about.