She designed the tear gun as a conceptual graduation project after an altercation with a tutor.
The motorcyclist was sent rolling onto the road but recovered quickly.
Her blood oxygen concentration became abnormal while undergoing anesthesia.
The car driver tapped on the windshield and gestured for the bus driver to step out.
He secretly installed a camera in the bedroom, using his mobile phone to monitor his wife.
Many netizens expressed their appreciation for the motorcyclist's kind act.
"Should I pull the plug?" the caption continues.
Nearly 150,000 protesters gathered around Seoul's National Assembly on Saturday (7 Dec).
She was hospitalised for 16 days.
His family declined to disclose his cause of death.