Sounds so weird. Anything short of a full mask, seems like there would be a high chance Saleh would recognize an assistant. This is someone you work with closely on a regular basis. Height, build, hair, skin complexion would still be visible under a half mask.
On the flip side, I'd be nervous as hell about being recognized if I was the assistant.
On the flip side, I'd be nervous as hell about being recognized if I was the assistant.