This is less of a problem with my skill, and more of a problem with my jumpy cat.
My cat (whom I affectionately call Chen), was sitting on my lap while I was playing LLS stage 5 Yuuka. While I was concentrating, the door opened and out came my other cat (...whom I affectionately call Orin) which caused Chen to run off my lap to get to Orin. I tried to stop her, because she's not really friends with Orin, and she often gets into fights with him. Obviously, trying to catch a cat while playing Touhou is not really a good idea, and I lost my last life and, of course, I had a bomb in stock as well.