Unrequested advice:
I try to explain to my kids the underlying life lesson that is trying to teach them. Don't leave it in a journal, leave it in their memories.
Not knowing how old your kids are, but they understand and can take on advice at an earlier age than you might expect. They may have tantrums about it, sure, but your explanations will stick with them, and consolidate the more explanations you give them.
Expecting kids to have common sense about cause and effect ("well, what did you think would happen?") is just so stupid in hindsight - they don't know because they haven't experienced anything with which to compare yet. I still occasionally make this mistake about my own expectations of their experience.
I think helping your kids to understand your reasons will give them a view into the real world in advance of having to enter it. Fore-warned is fore-armed.
One of the best things that's happened for my kids is having a cousin with learning difficulties. We (myself and my better half) have had to explain in great detail how their cousin's behaviour is as a result of the various defence mechanisms that are symptomatic of their learning difficulties and that 'not understanding' something as quickly as everyone else around you inevitably leads to frustration and anger and lashing out. It's not personal, it's their way of dealing with things, and as (generally) intelligent people, we need to have patience for that, whilst at the same time doing what we can to not spark her off, but also not accepting her behaviour if and when she does ignite.
We've had these conversations with the kids many, many times over the course of 7+ years, so it's not a one-shot deal by any means, but it has most certainly sunk in.
Parenting is ad-nauseum repeated effort, very slowly ratcheting up the level of detail of the world around them to match their level of growth and understanding. Don't underestimate what they're actually able to understand.
(I feel very strongly about this, potentially the most important topic in the world. They'll be running it one day, sow the right seeds.)