One of the things that amazed me the most about my little brother was his patience. Especially his patience when he was about to do something bad! For example, he would spend the whole day inspecting one of those big 1 Kg cans (that could be filled with powder milk, sugar, coffee or Nesquik). You would see him try and try to pry the can open with his tiny finger, very patiently but doing things as clumsily as a toddler can.
Suddenly, he would put the finger the right way and finally open the can. And it was too late for us to make any moves: a fraction of a second later, he would flip that can and spill its entire contents all around the dining room! It was particularly funny because if there was anything in the world my dad hated, that would be walking on sugar! :-))