He had a lot of idiosyncrasies like that. Another example: one day he told me I shouldn't leave windows (on the computer, not physical windows) open when I go

He had a lot of idiosyncrasies like that. Another example: one day he told me I shouldn't leave windows (on the computer, not physical windows) open when I go home at the evenings because it looks like I left work in the middle of doing something. After that I made sure I minimized all the windows before leaving.