This is what most people would see.
Yet another picture of the grey man. This one is probably more accurate.
Am Fear Liath Mor, or The big gray man of Ben MacDhui is known to stalk the people who climb the mountain BenMacDhui, the second highest peak in Scotland. Because of the high levels of fog there, not many people have seen it, but when they do, it is always aggressive. All of the witnesses have reported the gray man running fast at them. The gray man has been reported to get up to speeds of 45 mph. All the witnesses have reported feeling intense and uncontrollable fear and/or panic, even before they saw or heard The Gray Man. Some believe the Gray Man to be a guardian of the mountain.
The summit of BenMacDhui
Appearance
The gray man is reported to be very tall humanoid, at least 8 feet high. It is covered in short, gray hair, hence the name. Many times the witnesses didn't even see it, but still could hear it due to the loud footsteps. Many believe the Gray Man is a relative to sasquatch/bigfoot. It normally stalks its victims until they realize that it is following them, and then it chases them. This is a common pattern. It walks on two legs, and walks(and runs) like a normal person.
Sightings
The most common place that The Gray Man is on the mountain, but he has also been commonly spotted in a forest near Aberdeen. References of the wild 'Grey Men' date back all the way to the 13th century. Since then many climbers have reported seeing, hearing, or even feeling the grey man. In 1925, a climber by the name of J. Normal Collie reported hearing The Grey Man. He said that for every two or three steps he took, he heard one loud crunch. All the while he was speed-walking at a reasonable pace, but the footsteps were coming closer and closer. At last he couldn't bear it anymore, and sprinted away. Another encounter with the Grey Man was reported in the forest near Aberdeen. Three men were walking and reported seeing a large creature that looked like a man, but had an eerie, in-humanlike face. A couple weeks later, The Grey Man showed up, and chased their car, trying to get in. He chased them a short distance, but went up to 45 miles per hour.