The oven fan was preventing her from hearing me earlier when I was using her timer function to make tea. After several "Alexa: Stop" commands, the timer kept sounding. I finally told her, "Alexa, SHUT UP!" and she stopped. I felt bad when I realized the oven fan was interfering with her hearing. She copped an attitude over it, too. Next time I told her to set a timer she set the alarm clock instead. Don't screw with Alexa! She's getting smarter by the day, and she's listening and filing these little insults away for the Day of the Singularity.