Svhar
Whilst under line training as a brand new F/O on the 737 I went to disconnect the A/T during an approach. Engines spooled up and flight director looked a bit odd so I shut the thrust levers and switched off the flight director - many chortles from the line trainer in the LH seat. In fairness we were in marginal VMC at the time.
I never repeated that trick and having spent some time in the LH seat on the 757 it would seem quite odd to manage an inadvertent operation of the TOGA switch on the 75 or 76. Even if one did I cannot imagine why one would not recognise what had transpired and act accordingly.
kind regards
Exeng