The author discusses places where dogs may be at risk. These include beaches due to heat, salt, and rip currents; music festivals due to noise, crowds, and heatstroke; planes due to stress, health risks, and potential injuries; vehicles due to heatstroke, accidents, and poisoning; and hospitals due to disease exposure, stress, and injury risks. The author emphasizes the importance of keeping dogs safe in these environments and suggests alternative arrangements if possible.