Hey edgar, I don't believe in ghosts either. But I did have a strange experience.
My cat Miranda died, and I had a new cat, Mikey. Mikey was a big clunky guy. When he jumped on the bed, it was a very different feeling from when Miranda jumped on the bed.
One night I was lying in bed, almost asleep. Mikey was lying at the foot of the bed. Then I felt Miranda jump on the bed. I sat bolt upright. Mikey took off like a shot. I don't know what happened, but it happened.
I don't believe in no ghosts.