You clicked the tree somewhere and it would tell you either to try again, or you would win something. I think most people who won got $5 and a monkey plush toy. I’m not sure anyone ever won the jackpot. You could just click over and over again trying to remember where you had previously clicked, like a treasure hunt. Meanwhile they’re showing banner ads on the page.
It worked using the ismap
attribute on the image which tells the browser to add the x,y coordinates of the user’s click to the link when fetching the result.
I’m no “veteran diplomat” but in my experience it is only the people without real power who make threats. When you have power, you don’t need to make threats. You just respond to events with whatever proportionate response is necessary and within your capability. You don’t need to provide a preview of what those responses will be.
Setting “red lines” looks to me like weakness because it is essentially a plea to the other side not to do those things that you don’t want them to do, and it invites them to push up to those red lines, do anything but, and test their boundaries to test your commitment to them.