You utilise the power of mime, you lift you leg over your invisible horse and climb down a imaginary ladder.
‘Mais oui!’ the Frenchman says. It looks as if he is about to get off his horse…
… Then suddenly he becomes stuck in some sort of invisible force wall, his hands trace the outline and he pushes against it, but he appears to be trapped.
He shrugs.
You consider ‘if you shoot a mine, should you use a silencer’
Do you:-
Mime your hat has taken on the properties of a helium balloon.
Shout louder and slower ‘Get off the horse’