Believe me, I understand. My great aunt went 23 years thinking I had no sense of humor because I almost never smile or talk in public, and yet I'm constantly singing and laughing at home.
I envy you both your brushes. SK, you converted me to love drawing endless sets of mountains and trees in various styles but I can't seem to get the hang of using them on maps to my satisfaction so they stay in my sketchbooks and files doing nothing productive. Still, it's a relaxing pastime I suppose.