I must be the exception, I have an awesome psychiatrist. He's actually pro-choice and I'm completely truthful with him. Told him I was suicidal and he asked me what method, told him I go for the highest success rate and if I go for it, I'll get it right in one. We also talked about the only reason for me not having CTB yet is my parents and how it would destroy them. He actually said I shouldn't stick around just for other people if shit gets unbearable, he meant it in the most friendly way and I love him for that <3
The standard line of questioning of psychiatrists goes as follows: so you are depressed, are you having thoughts of suicide? Do you have plans or have you made practical preparations? Generally speaking it's no problem to share that you've been having suicidal thoughts - but never admit to having plans, unless you've got my psychiatrist ;)