That would cause the illusion. Even if it was a donkey. It certainly won't be an inflatable 'guy in a jet pack'. I assume the other pilot heard the jet pack si

That would cause the illusion. Even if it was a donkey. It certainly won't be an inflatable 'guy in a jet pack'. I assume the other pilot heard the jet pack sighting which is why they said it. But is it the most probable cause of the illusion?