If he’s stable that explains the horse shit…

The secret isn’t not getting mad. The secret is going with the flow despite being mad. If you’re constantly triggered by small things (like your dog getting some mud inside) then there’s proooooobably something a bit deeper that needs to be addressed. But either way, do the things, mad or not. Emotions happen, they’re never “wrong” but you can also determine what to do with them, or what to do despite them.