Weird news - Python falls into a conference room

We consider modern buildings as concrete houses, well protected and environments of peaceful working conditions where outsiders cannot get in. At the same time, many of the parts of the structure are very porous - there are air conditioning ducts, water pipes and sewage pipes, repair ducts that are essentially hollow columns within the building where repair can get in and access many common utilities. In addition, the ceilings in most places are artificial ones, meant to facilitate overhead lighting and increase efficiency of the air conditioning. With all these points, it is a wonder that more incidents such as these do not happen more often (link to article):

Surveillance cameras captured the shocking moment a massive python crashed through the ceiling at a bank in southern China, landing on the floor during a staff meeting of nine employees. Frightening footage shows the 5-kilogram snake dropping between two employees before slithering away. The video shows frightened staff members fleeing in different directions. According to ABC News, the incident took place last Friday at the Xin Cheng branch of China's Industrial and Commercial Bank in Nanning city. According to the Shanghaiist, the bank staff called wildlife authorities, who managed to capture the snake and take it away. The python was handed over to the region's Wildlife Rescue Research and Epidemic Monitoring Centre. Bank staff speculates that the python came to the building via a bird and flower market located next door.