I have to, they expect it. I love it, so do they. And when I worked at the vet, and I couldnt come home on my lunch break to check on them, I used to sneak into surgery if noone was in there, and call and talk to them on the answering machine. This is how the convo went " hannahhhhhhhh,puffffffffffff,stashhhhhhh, how are you guys doing. your mommy loves you and cant make it home today to cuddle. I wish I could, i miss you all so much. I hope you are being good and stay out of trouble. I love you *kiss kiss kiss* bye bye, see you tonight" and if my hubby pressed the machine before I got to it, he would hear it and just smirk and roll his eyes... whatever they like it