Not surprising! It just glide along the track!
Many of our MRT trains are without drivers too!
The train got sick of overloading situation and decided to runaway... Not knowing it's still on track...
India's railway finally beat China to be the #1...the longest unplanned self-running train in the World...

Expected la, typical cake leng behavior, change shift time, must be at the hallway talking on his phone and missed the boarding time.
Alighting driver boh heu lan, never see shift driver also alight