Has anyone ever had a paranormal experience or even saw a ghost?

Back in college, I was on a road trip with friends. We were driving at night , and had just hit the new highway.. long and lonely.. canopied by trees on either side. Stairway to heaven playing on the speakers, as the slight fog outside made it an enchanting drive.
A little confused about being on the right track, we thought we’ll ask someone.. kept driving for over half an hour and didn’t see a soul. Then suddenly noticed a man walking on the side of the highway. We stopped next to him.. an old man with a scared, almost pale face.. wearing dirty clothes. He was carrying a few sticks in his hands. We asked him for directions. He dropped the sticks, and in the shrillest, most beaming voice I’ve ever heard, he said “Open the door and let me in!” A little stunned and spooked, we sped off.
My girlfriend started crying saying it was a ghost. We tried to calm her down but still pulled her leg saying he’s probably following us.
Another half an hour of driving on that straight long highway.. we finally saw the figure of another person, and stopped next to him to confirm the directions.. as soon as we hit the breaks, he dropped the sticks he was carrying, and a pale old man in a shrill voice shouted “Take me with you!” All 4 people in the car screamed and we drifted off as fast as we could. We were cold to the bone, with no idea of what just happened. Kept driving straight along the highway and reached our destination an hour later.