MPs have been implored to "use their brains" when speaking up in Dewan Rakyat, with Dewan Rakyat Speaker Tan Sri Johari Abdul issuing a sternly worded reminder.br br The clearly frustrated Johari said this after a shouting match erupted between Datuk Awang Hashim (PN-Pendang) and RSN Rayer (PH-Jelutong) on Wednesday (Feb 26).