People just love putting things in their mouths that they know they shouldn't, don't they? But if you're at a party and someone is able to swallow a sword, you can't deny the fact that you'd be impressed. Although you'd probably be a bit dubious as to why they were carrying a sword around with them at a party in the first place - maybe it's just so that they could share this amazing party trick with you. What Culture does not endorse anyone to try and swallow swords anywhere, let alone at a party.