What they could do, right, is have a speaker in each cubicle that pipes sounds waves that have the same amplitude as, but with inverted phase to, the sounds of straining, grunting and splashing from the next door cubicle.
That sounds like a whole thing, the egg boxes will do fine
would this in anyway impede Theo’s escape? because he’s terrified.
This seems unlikely. But – cheap options and surely feasible – couldn’t they pump some music in? Would at least cover some of the embarrassment/horror/hilarity.
Ideally fucking banging hard house IMO
Japanese toilets often have a courtesy flush sound effect: