Several years ago I had a flat-mate who had a 'buzzcock', and I could hear it going.
It was a bit odd to hear the buzzing sounds 'immerse' and fade momentarily, then go loud again.
The next odd part, was at breakfast the next morning and trying not to think about it during the 'good morning's and 'sleep alright?'s.
Picture the scene;
"would you like one or two batteries with your bacon?......er....I meant EGGS"
or "lovely vibrations....I mean WEATHER.... we're having"