Common Lisp is politics, not art.
If you are always pressing the envelope, you will suffer many paper cuts.
If you can't take the heat, don't tickle the dragon.
In case you're not a computer person, I should probably point out that 'Real Soon Now' is a technical term meaning 'sometime before the heat-death of the universe, maybe'.
If you want a language that tries to lock up all the sharp objects and fire-making implements, use Pascal or Ada: the Nerf languages, harmless fun for children of all ages, and they won't mar the furniture.