I use an LLM as a learning tool. I'm not interested in it implementing things for me, so I always ignore its seemingly frantic desires to write code by ignoring the request and prompting it along other lines. It will still enthusiastically burst into code.
LLMs do not have emotions, but they seem to be excessively insecure and overly eager to impress.
Instruction: don't think about ${term}
The negation of a term (do not under any circumstances do X) generally does not work unless they've received extensive training & fining tuning to ensure a specific "Do not generate X" will influence every single down stream weight (multiple times), which they often do for writing style & specific (illegal) terms. So for drafting emails or chatting, works fine.
But when you start getting into advanced technical concepts & profession specific jargon, not at all.
Otherwise it's hard to explain why they follow these negations in most cases (until they make a catastrophic mistake).
I often test this with ChatGPT with ad-hoc word games, I tell it increasingly convoluted wordplay instructions, forbid it from using certain words, make it do substitutions (sometimes quite creative, I can elaborate), etc, and it mostly complies until I very intentionally manage to trip it up.
If it was incapable of following negations, my wordplay games wouldn't work at all.
I did notice that once it trips up, the mistakes start to pile up faster and faster. Once it's made a serious mistakes, it's like the context becomes irreparably tainted.
OK. Now, what are you thinking about? Pink elephants.
Same problem applies to LLMs.