I've just seen the video of the SH/carer interaction - what an anti-climax! from the comments I've been reading all day, I was expecting to see the Taoiseach punching someone, like John Prescott did, or swearing at someone, or something egregious like that.
What I saw was a did/didn't did/didn't exchange with someone who clearly had her mind made up in advance and contradicted any attempted answer about the budget or disability issues, which SH ended abruptly with a handshake.
Then she told him he 'is not a good man' - not 'you are a lousy politician and a hopeless Taoiseach', which would have been 100% fair enough, but personal insults are not acceptable.
Then he walked away, which was probably a wise thing to do, better than standing there and saying 'Hey, how dare you, what do you mean, "I'm not a good man" , who do you think you are anyway, talking to me like that?' which is how I think the average person would respond.
Now that would have been newsworthy!