Pilot depressurizes cabin - no 12 thumbprints.
First step is to require two people in the cockpit at all times, so if a pilot leaves, a flight attendant goes in.
Or just require the pilots to stay in the cockpit at all time. Pee in a can, if necessary.
LOL Trucker bombs from 30K feet.
And poop where?
>> Pee in a can, if necessary <<
No cans needed. Just install what in the old days was called a “pilot relief tube.”