Report Abuse. You should get them at 8 weeks old. That's an age where it won't be dramatic for them to be without their mother (or at least a caregiver that can take care of them 24/7) and old enough where you can start training. A lot of rescue center won't even give dogs younger than that.Silvia Â· 5 years ago. Thumbs up.eport Abuse. You should get them at 8 weeks old. That's an age where it won't be dramatic for them to be without their mother (or at least a caregiver that can take care of them 24/7) and old enough where you can start training. A lot of rescue center won't even give dogs younger than that. Silvia Â· 5 years ago.
Updated August 04, 2014. You can use a black light to detect body fluids. It's actually a good way to look for pet urine or make sure a bathroom or hotel room is really clean. Cat urine, in particular, glows very brightly under ultraviolet light. Urine glows under a black light primarily because it contains the element phosphorus.
Later, the skin turns violet, often with the development of large fluid-filled blisters (bullae). The fluid from these blisters is brown, watery, and sometimes foul smelling. Areas of dead skin turn black (gangrene). Some types of infection, including those caused by Clostridia and mixed bacteria, produce gas (see Gas Gangrene). The gas creates bubbles under the skin and sometimes in the blisters themselves, causing the skin to feel crackly when pressed.