teachers drink ' excessive ' amounts of energy drinks , teachers ' union etc . organisations like Red ##force , Monster and Relentless are promoting ' hyperactivity ' and likened caffeinated refreshments to ' readily available legal highs ' Of ##ents surveyed 13 % cited energy drinks as cause of bad behaviour .
Children drink 'excessive ' amounts of energy drinks , teachers ' union claim . Drinks like Red Bull , Monster and Relentless are causing 'hyperactivity ' NASUWT likened caffeinated refreshments to 'readily available legal highs ' Of teachers surveyed 13 % cited energy drinks as cause of bad behaviour .