it may be worth all those concerned to consider having their dogs marked with a tattoo, i know it sounds silly but i had a few people asking weird questions about my chihuahua and as soon as i mention he has a tattoo they are not interested. Its easy to have carried out via the national tattoo register. With micro chipping it is easy to remove the chip however a tattoo is impossible to remove. If the dog goes missing like the micro chip all details are held on database and makes it easy to match dog with owner.