In the UK, the HSE requires that all portable electronic appliances used for businessy things be tested for safety, this is colloquially known as a "PAT test"

I have no idea what this actually consists of, but I'm going to believe that it involves softly patting the appliance on the top while saying "aww you're such a good lil appliance, aren't you a good lil appliance, you're not going to give anyone a shock are you 'cause you're such a good lil appliance!"