Internet time travel?

The only time I did a time travel was on a WW2 USS naval ship used as a tourist exhibit. I open the captains door and was suprise to see they were very busy running the ship. The only thing was that there was no shows or reenactments and they were about to close around 4:30. Needless to say I close the door. I often wonder what would of happen if I would of stepped in.