Here's one account, amongst many:
"Many hundreds of persons there are in these districts who place implicit credence in the reality of the appearance of a death sign, locally
termed trash or skriker. It has the appearance of a large black dog, with long shaggy hair, and, as the natives express it, "eyes as big as
saucers." The first name is given to it from the peculiar noise made by its feet when passing along, resembling that of a heavy shoe in a miry road.
The second appellation is in allusion to the sound of its voice when heard by those parties who are unable to see the appearance itself."
T.T.W. adds that if anyone is brave enough to face down the entity, "it usually makes its retreat with its eyes fronting the pursuer, and either
sinks into the earth with a strange noise, or is lost upon the slightest momentary inattention." It is not confined to chuchyards, and ordinary
weapons do no harm to it.
fantasyworldproject.com...
Many accounts date back several hundreds of years. Yet those who claimed to witness the Black Dog phenomenon were no more creduluous than people of
today. In fact, it could be argued they were far more practical and less given to fantasy. They worked 14 hours a day, often much longer than that
and it was nothing unusual for people and children as young as eight to walk several miles to and from work in snow or sleet
Life was hard then. Very few enjoyed the luxury of running water or flush toilets, electricity or gas. They slaughtered, skinned and butchered their
own meat, wove their own cloth, made their own bread and candles, sewed their clothes, made and repaired their boots. And attendance at church was
mandatory. Failure to attend was punished. No welfare or age pensions. Babies born at home. Children working from as young as five years of age.
No shops, no phones, few books apart from the family Bible. No pre-packaged foods or convenience items. No supermarkets, just work six days a week
or seven in rural districts. Few if any holidays. No dentists, just a set of pliers. Surgery was rough and basic
These people wouldn't recognise us or our lifestyles as human. They wouldn't believe the luxury and leisure in our lives. If they wanted to go
somewhere, it was by foot for commoners and the working classes. They were tough, practical people used to trudging for mile after mile in harsh
conditions, lit only (if they were amongst the very lucky) with an oil lamp or candle in a jar -- through pitch-black woods and over dark and lonely
moors
I personally would lean to believing something told to me in earnest by a man or woman, God fearing, who could slay and butcher a beast by hand, tend
frozen herds, grind their own flour by hand, give birth in a cold stone room and then get up to bake bread and do this year after year as a matter of
course
If a person like that told me they'd seen a black dog with saucer eyes which grew larger by the second before disappearing in an instant --- I'd
trust their judgement, based on their proven practicality, resourcefulness and lack of reason to invent another problem for themselves