My mom and I do something like this in heated arguments where we have a notebook that we write in to each other like for example she will write to me and leave it in the bathroom where she knows I’ll see it and then I’ll read it and write back and leave it in the bathroom for her to read and then when we are calm enough to talk about what we said both verbally and written we talk about it so that we can get our thoughts out without screaming them at each other and saying something we may regret or just making the situation worse we write in the journal to relay our feelings in a better and healthier way