give him a chance to retract his threat, and if not, just kick him out.
dont drag it too long. one day is sufficient grace to let him think it through.
no assemblyman should hold him party to ransom like this.
fair if he wants to negotiate it, but this is not the way to do it.
if he wants to go, then let him go.
and in tan beng huat's case, it would be really amusing if he quits and joins MCA. then he would be boss over tan cheng liang.