who's had an experience with a ghost

[all the same]

Mine are:

I live in a really old building built in 1917 (I think). Three things have happened since I've lived here:
1) every few nights while I'm drifting off to sleep, someone sits on the foot of my bed. I try to move around to recreate the feeling of weight just in case it was me that caused it, but it feels totally like someone sat at the foot of my bed
2) my closet door opens by itself
3) I was dog sitting for my parents and the dog was all excited about something in the living room, like she was greeting someone and wanted to play with them. I was laying in bed and thought it was a bit odd. Then all of a sudden, she screamed, like literally screamed, and jumped into my bed and hid under the covers shaking. This other time, I was at my friend's place across the hall from me and she was barking and growling at the corner of my friend's bedroom.

These incidents seldom happen and when the person sits at the foot of my bed, it's never creepy. It just feels sort of comforting or something. Very non-threatening. The dog incidents were REALLY freaky though!

Anyone got any they wanna share?