Sifu since you are professional can you teach us if I have emergency while I am not stationery,  car trouble due to overheat so drive slowly, warn driver if foggy situation how to be caution?

Can I high beam others to warm them?
Can I signal left and right to warm them?
Can I drive left and right?
Can i put my hands out of my Windows and keep waving at pp
Can i keep pressing brake to warm them?l

Please enlighten us the best cause of action for the above since you are professional so future I can share your professionalism with others .

Teng kiu ah sifu professional

for ur infomation the most visible light of ur car is not hazard light but ur brake light.

red color light had longest viewable range that why all the high tower/building used red light on top of building to aware pilot!!!!

so during raining/fogy day turn on ur car light so driver behind can see ur brake light. make sure all 3 light function all the time!

and dont stupid to change ur brake light to blue white etc which is useless when had low visiblelity.