My Libby is coming up to 5 months. She is crate trained. Has been since the day she came home. She goes in at night no problem and sleeps soundly til the morning. What has changed is during the day after she has had some play time and lots of free time if I then put her into the crate for a rest and times when I cant watch her 100% to avoid toilet accidents she is beginning to protest!! Before she just settled but now she is kicking up a fuss but does settle after 5 or 10 minutes. I have never let her out during a protest because I feel she will learn thats the way to get what she wants. What I was wondering is this normal for her age and a stage she is going through.