Parked delivery trucks may be hazardous because:

Question

Passing parked delivery or postal trucks can be dangerous because the driver may be in a hurry and pull into traffic without warning, or may they suddenly step out of the vehicle without checking for other traffic.

Accepted Answer

People are often in a hurry when exiting such trucks and may not look for other vehicles.

Answer

The trucks are often shiny.

Answer

Packages often fall out of the trucks and into the road.