We recently had a teacher who actually did not mark his exam scripts and did not come to school for a day or two. He probably felt a bit stressed, I guess. Well, I think one has to be ready to take a lot of stress if one wants to be a teacher.
I've encountered one breakdown case in BNSS, one slightly psycho case in VJC, and one of my friends who broke down while at NIE and failed the practicum. There must be a lot of psycho teacher cases in Singapore. That's what they said last time: teachers constitute a sizeable proportion of patients at IMH and Adam Road.