Thwack! The snowball bounces off my shoulder and lurches me forward. My hands clutch the grocery bag as the knit cap I’m wearing catapults into a snow bank. I push my glasses up with a mitten-covered thumb. Left hand on not-so-narrow hip, I survey the neighborhood but see no one. Sun breaks through hazy clouds, and I squint against the reflective glare as my teeth pound out Beethoven's Fifth. Cap retrieved, I walk on booted heels as fast as the slippery sidewalk allows.