Don't Know - Don't Care.
No, those will not be my last words, I just refuse to think about what I will be doing, thinking, or saying when my time comes. I prefer to focus on what I am doing now, how I am enjoying life, and what I can do to make the lives of others better.
When the time comes, I know I will say something stupid. But who cares right? I won't be around to watch people laugh - but I will have at least made their lives better.