You might recall a BA 747 overflying Africa probably 20 years or so ago, when a mentally ill passenger entered the flight deck “with intent”.
The Captain “poked” him in the eyes as the FO fought to keep control of the ac.
The ac eventually rolled by 94° with the nose dropping.
Fortunately the FO was ex Hawk whose previous experience of came to the fore, and smoothly returned in to straight & level.
A good example of why appropriate training prior to licence is important.