Environment

For starters, take note of the surrounding environment in which the puppy or kitten is being kept. Does it look and smell clean, or is it filthy, with uncleaned litterboxes or urine and feces lying all around? If the latter is true, you should question the integrity of the seller. Observe all the individuals in the litter or group. Do any appear sickly, depressed, or otherwise unhealthy? An infectious disease can run rampant through such a congregation of young dogs and cats, and it could be just beginning to rear its ugly head within the group.