That was very eerie. It scared me so I can imagine the fright you both had.
An eerie thing that has happened to me was a long time ago. About 2 or 3 years ago actually. I used to have a "joy cam" which took little polaroid pictures. I would take pictures of my pets, my friends and not to mention my family. They always turned out perfectly fine. One night, I decided to take a few pictures of me out of boredom... well, and to see if I could have a decent looking pic of me for a change! haha. Keep in mind, it always worked perfectly fine. Well, after taking about 6 pics of me and 3 pics of my cat and 1 of my friend... I began to notice something. The 4 pics that weren't of me, were fine. They were nice actually. But the 6 pics of me, had a white blur in them. The white blur was only and always right above my right shoulder. Any other pic, there wasn't the blur. It was only the pictures of me. It freaked me out to the point I just threw away all the pics. It brings new meaning to "guardian angel" and "someone's always around".