I'm glad you weren't scared. The unexplained often terrifies me, expecially when it relates to experiences multiple people have with absolutely no apparent explanation.
I've experienced some weird things over the years which I'll describe briefly. They seem so incredibly tame after reading this thread though!
About 12 years ago I was staying with my parents who live abroad. I was single at the time and had gone alone. During my trip, we took a break at the beach. My dad parked in a car park right by the beach at the bottom of a steep hill. After a few hours at the beach and blowing the local town, we returned to the car. I fastened my seat belt but checked it multiple times. I also became temporarily obsessed with making sure my parents were fastened in too. I didn't have OCD and this had never happened to me before (or since). I was confident that all our seat belts were fastened securely. My dad exited the car park and drove up the steep hill. At the top was a junction and as my dad stopped, a car sped up the hill behind us and slammed into the back of us. Thankfully we were unhurt but shocked. The car was quite badly damaged. That evening we went out for dinner. Whilst we were waiting to order food, I noticed my hands were blue despite it being a warm summers evening. My dad noticed too. We concluded it was due to shock. Not of the accident itself but my strange unknowing 'prediction' that something was going to happen after I explained my obsession with the seat belts. My dad said "you've done this before, haven't you". I had, but it was so long ago now I can't remember what had happened although at the time of this accident it was still fresh in my mind.
A few years ago I had a very sudden deep concern for my closest friend. It had only been 3 days since we'd last spoken and he hadn't said anything in our most recent conversation which had worried me. We often went a few weeks without speaking which, for us, was normal. I knew I had to contact him at that exact moment. I did, and he was in an ambulance being blue lighted to hospital following a suspected heart attack. We were both in our 30s. Thankfully he was okay.
Again, a few years ago I rang my parents in their home country (not UK) but there was no answer. Normally this wouldn't worry me at all because we all had very busy lives and missed each other frequently if a call wasn't planned. Instantly I started to worry that something bad had happened. I told myself not to be silly and that they were just out shopping or attending an appointment. It turned out my dad had been up a ladder pruning a hedge when the ladder buckled underneath him, sending him plummeting. He broke both arms and had two black eyes, many cuts and bruises and was obviously shaken. At the time I'd tried to ring the first time, he was in an ambulance on his way to hospital.
As a young child, about 7 years old, I was given a doll for Christmas. The doll had a dummy which you could insert into its mouth. I adored that doll and it was honestly the only thing I wanted for Christmas that year. I was so thrilled to have got it. That night, Christmas Day night, I took the doll to bed with me. It had the dummy in. The next morning I woke up and the doll was in bed with me but the dummy had gone. I searched everywhere but it didn't turn up. My parents assured me they hadn't taken it, and we don't think my brother could have done either. We had no reason to plus he never went in my room overnight. The dummy never, ever turned up. My bedroom was tiny and I search every inch multiple times. I still have the doll but the dummy was never seen again.
Many strange things have happened to me, most of which I can't explain, but nothing so massive I'd need an exorcist or something!