Ollie has a new weapon is his armoury designed to manipulate adults and get his own way. It is called The Guilt Trip.
As his vocabulary gets ever wider and, crucially, as he gets to understand the meanings of what he says, Ollie is coming to realise how he can deliver those words with maximum chance of evoking a reaction.
His current favourite is dropping a very poignant "I love you Daddy" halfway through a conversation. It just makes me melt an inevitably softens me up for any later times when he wants his own way with something (which often follows just after).
The other one which grips me is delivered if I haven't seen him for a couple of days when I am out early and home late and that is "I miss you Daddy". There is nothing you can say or do apart from give him a cuddle!