Dad doesn't have any tattoos as long as far as I knew

But in this picture the tattoos covered a large part  of his neck before disappearing into the materials of his clothing 

How was this even possible? 

Dad was sure a man of discipline, his personality sure doesn't match what I'm seeing right in this picture.

But then again this picture must have been taken more than ten years ago, perhaps during that time he must have drawn one, then decided to erase it as he got older... 

With these ...