At or around 0445z this morning [16/06] I alighted from a 52 bus outside the Royal College of Art, London and saw Horse Guards and/or QLG exercising their Mounts. As I walked quickly up the pavement and facing them I noticed the two leading riders were sporting 3 pips apiece. [For the purpose of ident I am 5ft 10ins tall with grey hair cut to a No 2 and wearing navy blue polo shirt, navy blue trousers, black magnums and carrying an all black rucksack] On seeing this I said loudly 'Morning Rupert' and attracted a really sh*te look from the one nearest the kerb who was perhaps the brighter of the two. Towards the rear of that group I heard suppressed laugh and a snigger and it didn't come from the Sgt who was the last mount. So - who laughed?