I have an old cohort of co-workers who I went through the PE experience with and we pretty much use PE ownership of a company as a heuristic to avoid buying the

I have an old cohort of co-workers who I went through the PE experience with and we pretty much use PE ownership of a company as a heuristic to avoid buying their products. Duracell batteries would be an example. A list would probably be helpful but depressingly long.