... and it's actually been easier than I thought. If they get up to mischief I'm just telling them no firmly and then redirecting (or trying to) their attention. Z laughed when he first heard my challenge but today I noticed he was also not yelling in circumstances where normally he would. So double goody!!
I'm particularly interested to see if they listen better at the end of the 30 days. Right now we tell them no, they look directly at us and then do precisely what we told them not to. Let's see if reducing the volume increases the auditory uptake. I live in hope!