Fields get built up in our bodies and can be dissipated to an oppositely charged or grounded field. If I remember right the farther the voltage is the greater the energy dissipation ie lightning form the rubbing of oppositely charged clouds and our atmosphere having about a 500,000 volt field strength.

Does the reporter see this with people having wool carpets and wearing a synthetic robe? Turn out the lights with these robes and you see lots of little sparks erupting from the surface. These robes are mini field generators. 120 volts is too small to create a field in a slow moving environment. But get all charged up and touch ground you will get a spark. My guess is these robes issue forth voltages around 5,000 volts and up as sometimes they crackle and that is the air breaking down. That is a pretty high field being dissipated.