Apprentice to Smithmaster Bocard

Describe a heroic event you witnessed growing up.
 
I witnessed knights jousting on horseback in an arena setting when I was very young; at age 5. My smithmaster Bocard was working the forge tending to the horse shoes and dented iron armor of the knights involved in the event.
 
Describe a time when you let someone down.
 
As an apprentice blacksmith I was tasked to shoe a horse for a noble, yet I hammered the nail too far into the right front hoof maiming the horse and Bocard was lashed for my negligence.