jonny bucknell , 58 , was enjoying meal in the council chamber when a labour rival , theo blackwell , spotted him and alerted other councillors .
he was forced to put down his cutlery when the mayor , lazzaro pietragnoli , interrupted the proceedings to tell him off .
the rumpus comes a month after liberal democrat councillor martin elengorn was caught playing scrabble during a richmond council budget meeting in south-west london .