They’ve infiltrated the world of entertainment. They hide in plain sight at our gigs and plays, our concerts and comedy nights. They operate alone or with a single accomplice, probably wearing fresh merch to mask their identities. They laugh along at jokes from comedians they’ve never heard of and sing along to songs they’ve never heard before, with all the zeal of a real fan. They could even be sitting right next to you. Or, perhaps, you might be one already. Not that you would dare tell us. Because you, like the rest of them, have a vow of silence and a licence to... fill. Seats, that is. Seat-fillers fill spare, unsold seats for struggling events looking to avoid an empty venue. But they have to remain totally schtum that they’re doing just that – otherwise, it’s curtains.