Willy isn't clicker trained, but I have him trained that if I want him to come back to me or if he's trying to get to the cats food or litterbox all I have to do is snap my fingers & he comes running. I love it. I started doing it so I didn't disturb my husband when Willy wasn't behaving, if I called him then my husband would also think he needed to correct him too, when I snap my fingers he stops whatever he's doing & comes right back to me.
Desiree