Name an industry or technology that does not use or follow any protocols.?

Question

This is a part of my homework :o( Unfortunately the text provides me with all the information about protocols, but does not mention anything about what doesn't use it. Is this even possible? An Internet search provided nothing, so I am asking here.

Answer 1

all companies, industries, technology sectors, even a family use   protocols life would be very erratic without a protocol list

Answer 2

the Mafia