The Korean transportation system is very clean and efficient. The buses and trains are well maintained. It is very rare for the buses to break down. Breakdowns disturb the time tables.
So this morning, I saw a frazzled bus driver leaning into his bus' engine while several impatient passengers looked on. They only had to wait a few minutes for another bus to pick them up.
Strange, I've only seen this three times in all the years I've live here.
A common site in many countries is rare here.