sure the lack of monetary pressure really helps. make no mistake though 2 losing weeks on the bounce and you will be put on sim, keep on down that route and you would be out 3 months tops.
I've never known an investment bank put a single person on "sim".
All I've ever seen (in the 3 top tier banks i've worked at) were desks with people, then desks with empty chairs.
My last place favoured approach was if you went down more than 3%, you were simply met by the trading floor doors (if you took a toilet break) by HR and legal and told that your stuff would be couriered home.