ChipLead will not fit into most (or any) payment terminals. Contactless payment functionality is unavailable due to the signal insulating properties of lead. Mild poisoning may occur if you lick the card or sweat excessively whilst holding it.
"One family of MoneySavers based in the Oxford area claimed their meter had twice changed the TV channel to tune into University Challenge, and had once even blurted out an answer via an Amazon Echo smart speaker.
Another MoneySaver in Glasgow told us their smart meter appeared to have developed patriotic tendencies, and on several occasions had set ‘Flower of Scotland’ to start playing through the household speaker system."