Cattle prod crutches???
I'd duct tape him to the chair if he had any of the stuff - he can't be a proper marshal, he hasn't 'acquired' any! Got to stop him from moving somehow - he was told to rest and keep that leg raised!
He is asking if he can have a low profile tread put on his cast - he'll be wanting aero wings on the crutches next! God knows what adaptations he'd make to any wheelchair!!!