A fine malt , but there are limits

The problem started when my younger son took me literally.  'The malt whisky is there to be drunk', says I.  And so drinking it he has been.  But he has been taking more than his fair share of my fine malt and I need to address the issue with him.  It's not even as if he buys his own occasionally.  So do I say, 'No more, enough already!'  Or, 'Leave some for me, please.'  Perhaps it should be, 'Smaller measures might allow the whole family to enjoy it.'  Although to be honest his mum doesn't drink malt whisky, nor does his older brother.   I could hide the bottle but that seems churlish.   And, my final dilemma, it's not as if I even enjoy malt whisky that much, certainly not compared to wine or brandy or beer.  But there are limits.