@Suiseiseki@freesoftwareextremist.com Hardware is not crappy. They are rigorously engineered to pass IEC 61000-4-2, which is the industry-standard ESD compliance test for the past 40 years. The lesson is that the office chairs can generate a highly non-trivial amount of ESD well exceeding the known engineering knowledge at that time: ~100 pulses in several seconds, in comparison to 10 in compliance tests.