3 ms·Standing on UK style plugs with bare feet is the big risk.by arethuza 7y agoStanding on UK style plugs with bare feet is the big risk.Glawen 7y agoBeen there done that. I concur that it is painful. Morever they nearly always stand with the sprongs pointed upwardsarethuza 7y agoI assume they have a secondary role as caltrops for home defence or civil unrest scenarios.