I spent the next two heartbeats looking back and forth between my mother and my grandmother, mouth opening and closing as I tried to comprehend the stupidest thing I'd heard in my entire life.

"What the hell is wrong with you?" Okay, I didn't mean to jump on Mom like that, I really didn't. But it came out, boy did it ever, in absolute shock.

I could have been more tactful, I know that now. But I really think, no matter how I called her an idiot, Mom's reaction would ...