Shake out the Sillies Event Details This event is running from February 17, 2016 until December 20, 2017. It is next occurring on September 20, 2017 @ 11:00 am. Healthy FUN is one of MCM’s biggest initiatives. Come Shake out the Sillies with us every third Wednesday of each month at 11:00 AM. Children can strike a yoga pose, kick a soccer ball, or sing and dance to live music! Your child will be better prepared to live an active lifestyle. Shake out the Sillies is sponsored by Merit Health River Oaks Hospital.