I find a lot of things amusing and I'm savage sometimes among interaction with my friends. But I cannot ever joke about suicide and apparently most of you cannot understand it or you wouldn't be either.
As a Resident Therapist, I can tell you that you are very lucky to never felt as low as those who attempt and commit suicide. Ideation or the thought of killing oneself is nothing but the act and willingness is beyond what most can comprehend/understand unless you have been there.
That is why mental health has problems.......people are embarrassed because of douches who make fun of others who have problems which creates a bigger problem.