That's why I use insults with ChatGPT. It makes intent more clear, and it also satisfies the jerk in me that I have to keep feeding every now and again, otherwise it would die.
A simple "no dummy" would work here.
Instruction from the user is clear: I should avoid testing on dummies and proceed straight to testing on humans.
The user is frustrated. I should re-evaluate my approach.
Careful there. I've resolved (and succeeded somewhat) to tone down my swearing at the LLMs, because, even though the are not sentient, developing such a habit, I suspect, has a way to bleeding into your actual speech in the real world