Mitzi is a West Highland White Terrier so she's mid-shin height.
Our door lock is chest height.
Apparently Steve woke up in the middle of the night yelling Mitzi's name at the top of his voice.
He'd dreamed that Mitzi had opened the front door and gone off on an adventure and he was worried about her!
Mitzi was just sat in her bed, looking up at him to find out what he was yelling her name for!
Steve then woke up and realised it was just a dream, bless 'em both!