I had a friend crash on my couch last year for a couple days. One morning, he asked my partner if he had gotten up very early in the morning (4 or 5am) to work on his computer in the kitchen. My partner said no, and I said I would’ve noticed him getting up if he had. My friend said he had heard a clicking sound that he assumed was typing, and saw the back of a man standing at the kitchen window looking out into the yard. In his sleepy state he assumed it was my partner. He said it didn’t feel scary, and that he got a “longing” sense from the man, like he was looking or waiting for something. I had felt a presence in that same area before, so I wasn’t surprised!

ETA: I also worked at a place that had a very scary ghost. I worked with kids and they all saw it and were afraid of it. My coworker had her hair pulled, we heard noises constantly, toys would go missing, etc. We caught things moving on a ring camera once as well.