I don't make any particularly random statements, but if someone were to overhear some of my conversations they wouldn't make a lot of sense. Last week a workmate and I were discussing replacing the World Cup with a better championship; each country sends their national animal, and we have a fighting tournament. An old lady gave us an odd look as she walked past, because we were debating whether or not to allow aquatic animals to fight land based ones, or to put them in a category of their own. If we did allow them to fight, would the fight be in or out of water? It was a tough debate.
A friend of mine has a tendency towards bizarre, out-of-the-blue text messages. The other day he messaged me just to say "Google 'Maddie McCann blow-up doll'". Before that it was "Shitcunt", generally sent at around two in the morning.