I accidentally pissed off the guards on my way back to headquarters, and was forced to run through a canyon. Said canyon was filled with another 8 or so guards, who cut down my horse. I then had to run the rest of the way, until I broke their line of site and dived into a pile of hay, but since a templar was hiding on the other side of the hay piled, I was seen, and was forced to run again. I then climbed a building, jumped to another building, dropped down another ledge, and literally landed on another templar.
I had a Templar blocking one side and about 20 other climbing up a ladder behind me. It was at that point I discovered that as a Templar draws his sword he can be assassinated without him blocking my attack. I then jumped off the roof, ran up a slope, and swan dived off a cliff into a hay stack.
I then had my revenge against the other templar after the alarm died. I then found another black horse that had a white blaze on his forehead and continued on to headquarters. This time I shall avoid galloping over guards.