Life at ankle height
The Prague Ratter, an old Czech breed revived from near extinction, weighs less than many cats and stands only a little taller than a paperback book is long. That scale rewrites home safety. Gaps that are draughts to you are doorways to him: the space beneath a door on an uneven floor, the bottom corner of a garden gate, the opening under a fence where the ground dips. Start with a floor-level audit of every room and boundary he uses, lying the torch at his height and sealing what you find with strips, boards or mesh. Check behind appliances and inside recliner mechanisms and sofa beds before use, because a tiny dog's favourite nap spot can be a dangerous one nobody thought to look in.
Bones, jumps and the furniture rule
Fine bones are the breed's fragility, and most Prague Ratter injuries happen in ordinary living rooms: a leap or fall from a sofa, a slip on polished floors, a foot stepped on in a busy kitchen. Set up ramps or low steps to the furniture he is allowed on and teach him to use them as the normal route, lay runners on slippery routes between his key rooms, and make a household rule that he is never carried by children or hurried adults with full hands. Look before sitting down, every time, because he will be under the blanket. If he limps, yelps, holds a paw or goes quiet after a fall or a knock, contact a veterinarian promptly, since small fractures and injuries are easy to underestimate in a dog who weighs so little.
A ratter's curiosity and the floor-level hazards
The breed earned its keep hunting rats in medieval households, and the instinct survives as cheerful, thorough investigation of everything at his level. That puts him first in line for dropped tablets, coins, hair ties, batteries, grapes and pieces of children's toys, all of which are serious for a dog of his size. Keep floors in his rooms genuinely clear, use bins he cannot reach into, charge devices with cables off the floor, and sweep after meals, parties and craft sessions before he does his own inspection. If you suspect he has swallowed a tablet, battery or small object, or he vomits, drools or strains, contact a veterinarian immediately and say what is missing, because with a dog this small there is no safe wait-and-see category.
Doors, gardens and being seen
Treat every exterior door as an airlock: an inner gate or a closed room between him and the street, a verbal check before doors open, and a garden that is fenced to the ground with no gap his head fits through. Outdoors he needs supervision even in a secure garden, since birds of prey are a genuine consideration for a dog of his size in open country, and cold and wet weather chill him quickly. Keep his identification on him at home during visitors, parties and building work, when doors stand open and attention is elsewhere, and photograph his markings clearly so a finder or shelter can match him fast if the worst happens despite the airlocks.
A lost Prague Ratter is easy to overlook and hard for strangers to identify, which is exactly why KinsLe's Verified QR ID Pet Profiles help, letting a finder scan his tiny tag and reach his identity and your contact details at once.