I've heard footsteps when everyone was asleep.
My locked door opened (only once)
Things tend to get lost and, although I've checked that spot 30 times, the next day/week/month it shows up there. I lost my ipod touch and searched my room and checked the table I left it on at least 6 times. When I got back home, it was on that table.
Our cats and dogs stare at random things sometimes, and than they chase something not there.
Something tapped my shoulder and moved the blinds while doing so.
I've heard people talking outside during the winter, but when I go out the next morning, there are no footprints
I lost my ds lite when i was around 10 and we found it a dew weeks ago in he very center underneath my parents bed.

I am so freaked out o_o I don't want to sleep.