Oh boy, I sure have tried this. Absolutely nothing that I have tried stops the crying... sternly telling him to stop, using a gentle approach, ignoring. Once he starts it just keeps going and going. I like the idea of removing him to his bed (in a room just off my daycare playroom) & as soon as he stops bring him back. This way, we are getting some relief from the sound and hopefully, with no attention at all during and lots of positive when he's done...it stops more quickly.