While most took this as a harmless reference to the Robin Williams classic Dead Poets Society, the origins and implications of this scene seem to have past most viewers by. The original poem "O Captain! My Captain!" by Walt Whitman was written as a elegy in honor of US President Abraham Lincoln after he was assassinated.

So apparently in Equestrian history, President Lincoln's pony (or dragon?) counterpart was assassinated. Makes us wonder if the assassinations of Garfield, McKinley and JFK are also canon. Do the ponies have to put up with antics Donald Trump's pony counterpart?