The real secret to guacamole is that you use exactly the elements that you need, which is cilantro, onion, tomato, and jalapenos. And, of course, avocado.
If you can't think like an onion or a carrot or a tomato, you may be a technician, but you won't understand what you're doing, and your dish will be flat.
The Onion Field, that one got pretty close to me because I was a cop when it happened. I saw some of the indifference that my police department showed to the surviving officer.