Sedan chairs were the taxis of old London. They consisted of an enclosed chair in a cabin with long poles fitted to either side and were carried by strong men, one in front and one behind. These chairmen also provided an element of protection in the largely lawless urban streets. Having delivered the occupant, they would congregate around fires until their client wished to return home. The butler or steward would come to the door of the house and shout "chair 'ome", which gave rise to the modern expression "Cheerio !".