You blocked those that are standing behind you.
If the public want to go forward, passing you, they might trip.
If public in front of you decided to not see the performance anymore. They might trip while walking pass you.
Even those standing beside you might trip when they move about.
Maybe you should consider setting up a barrier around your ladder so that no one will move close enough to your ladder and trip.
Worse case, you might fall from the ladder if someone knock against you.
Maybe no one in this world is that blind.
On a side note, by standing so tall on the ladder, ladies beside you must beware.
Again, why do you need to be on the ladder?