Challenging behavior occurs when the demands being placed upon a kid outstrip the skills the kid has to respond adaptively.  And the embarrassment factor plays a role as well.

The Heat of the Moment

Dr. Ross Greene, originator of the Collaborative & Proactive Solutions model and author of The Explosive Child, Lost at School, Lost & Found, and Raising Human Beings, provides guidance to parents on understanding and helping kids with social, emotional, and behavioral challenges...along with his co-hosts Kim Hopkins-Betts (Director of Outreach at Lives in the Balance) and parents Jennifer Trethewey, and Stella Hastings.