It's a little stalky, but yeah your work calendar is public on purpose - it's incredibly useful. People look it up before walking to your desk to chat and especially before setting up meetings. Just put a block of "busy", serves the same purpose. Nobody really cares if you're in a hospital or just running.
You cannot take any screenshot or any document or any piece of code from any company. This is common sense, in addition to probably being a copyright issue. I'm not sure why would anyone expect to be respected by their employer without following this rule.