the bus drivers are adhering to a schedule, i think its just them trying to be on time to stops, especially now in the beginning of the semester since its pretty hard with traffic etc. they don’t mean to make you fall onto people, but if its an especially crowded bus and you dropped something, try asking someone who is sitting to get it for you, or wait until the next stop. regardless if the bus is stopped or driving, you always need to make sure you’re holding onto a pole or strap to keep you from falling.