Creepy old city bus man

I remember when I was just in 5th standard. I was going back to home from school in a city bus. I sat at the very back of the bus and the bus was quite empty too. Later a man if age 35-40 got up and sat beside me. I paid no mind. But few mins later that man started shuffling through his pocket in a way that his elbow was touching my chest. I move a inch further and so did he. I was so scared that i got down three stops before mine. Since that day till now I'm scared of travelling by bus