2) Bald tires are more prone to blowouts, and when a tire gives out-especially at high speeds-it can cause the driver to lose control of the vehicle. Obviously, that can lead to a serious accident. 3) Because they don't grip the road nearly as well as newer models, bald tires can increase a vehicle's stopping distance.That can be especially serious on wet roads, in stop-and-go traffic, and wherever pedestrians are present.According to a 2012 study by the Rubber Manufacturers of America, more than 13% of the vehicles on the road have bald tires.) Because they have very little or no tread depth, bald tires do not allow water to pass between treads. That means that cars with bald tires often hydroplane on wet roads; they actually ride on the surface of the water, and that renders the steering wheel useless, at least temporarily.
If your puppy wants to sleep, let him sleep. Your puppy needs 18 to 20 hours of sleep a day. He'll get some of this sleep during the day in the form of short naps. You should establish a bedtime routine, however, so that as your puppy grows into an adult dog he learns to get most of his sleep at night.
The length of time pup needs to sleep doesn't change, but you can tweak bedtime a bit as long as pup makes up the sleep at other times. Our recommended bedtime routine for new puppies is to take them for a short walk at 6pm (if they can go outside) or play some games for around 10 to 15 minutes, then give the last meal, followed by a trip to the garden for the toilet.