Way back in high school, I took a horse to a show to do the equitation division. Simple course - four jumps on the rail, jump them on the left lead for the first jumping class, then the right lead. Go around twice to make 8 jumps. Well, this horse liked to cut left and when practicing, due to the other riders in the arena, I was only able to jump four. The jumps were set at 2'3" or thereabouts.
The class was in an indoor with essentially a 2x4 set at about 3' as the gate. My instructor and a fellow student were standing on the outside watching me.
So, after four he decided he was done. Cut left, jump the 'gate', right between my instructor and other student - thought I was going to take someone's head off! I was told I had good form over that jump, though, if that counts!