Just got a new 8 week old puppy. Unfortunately we got her after work on a Monday and did not have time to properly acclimate her to the crate. She will go in there on her own and is perfectly fine with it until we close the door. Then it's total freak out time. She wines and howls to high heaven, stomps on the floor, shakes the bars, etc... We've been ignoring it and eventually she wears herself out and sleeps for about 90 min and then starts all over again. It's awful and I'm afraid it's stressing her out (Not to mention that after 3 nights my husband and I are absolutely exhausted). The cage is in our bedroom so she can hear us sleeping and knows we are right there. She has a cozy place to sleep, a chew toy and a kong stuffed with a frozen peanut butter/banana/yogurt smoothie. I don't think it's mommy & littermates separation as much as being closed in the crate. I just don't know what else to do.