Worst electronic equipment you have had?

Hi

Wonder what are the 5 top most worst electronic equipment you have ever had or been near, and caused you the most suffer and illness?

Cordless phones (from houses).

I-phones or certain smart phones (they do seem to affect me much more than non-smart phones)

certain computers or smart TVs

certain wifi signals in cafes, libraries, trains, train stations, airport... they drive me nuts.