Most Cairn puppies are crate trained when they leave the breeder with their new owners. Place the crate close by the bed of that person who will be caring for the puppy. By crating your Cairn during the night on a soft, white towel, you can perform a mini-health check every morning. Each morning when you let the dog out of its crate to go outside, take a moment to check the towel. You will immediately see any sign of a health problem, such as blood, vomit, or diarrhea. You can then recognize and treat the problem before symptoms become worse.