Ok new forum game - it's called Baker's Dozen.
Someone creates a topic relating to horses in some way and people think up 13 things pertaining to that topic.
So... I write my answer as number 1, next person as number 2 etc until we reach 13. Then the next poster comes up with a different topic and we start again.
So the first topic is:
13 Breeds Of Horses
1. TB - Thoroughbred