No, it's not. You don't have to fake the attempt, you just have to fake the motivation. Go to an adult mental health facility and tell them you want to kill yourself, or you're about to kill somebody.
Some people don't get doctors, and some people have to fake suicide to get any help.
Let's look at the elephant in the room. It's easy to kill oneself yet a majority of suicide attempts fail. I think most attempts are fake. However these fakers are often in severe condition, and might snap and actually do it.