What is so funny about suicide?

chocolate bunny tied to a brick on bridge is advertisement for Gelazzi
When and why did suicide become a method in advertising? Of course this is just a chocolate bunny and not a real bunny, but why this morbid fascination with suicide?

chocolate bunny missing butt and bunny missing ears trying to talk cartoonNow this is funny!
What is the reason for my problem with suicide in advertising? Please read this post, Child Suicide is Not Advertising Tool. I think you will agree with me.