P.S. If anyone actually finds the source of this exact phrase, I will write a follow-up post eating my own hat. The hat is made of rubber.
Did I Not Tell You to Wear Rubber? - Safety First gomu o tsukete to iimashita yo ne 01 web updated
A ghost of a UI flickered across his vision: [PLAYBACK v.01] | SECURE CHANNEL | VERBAL PROMPT REQUIRED gomu o tsukete to iimashita yo ne 01 web updated
Let me break down what the Japanese means: gomu o tsukete to iimashita yo ne 01 web updated
: This could also be part of educational material, especially if the topic involves safety procedures (e.g., wearing rubber gloves for a certain experiment).