My first program was a script that put up a dialog box that counted how many times you’ve clicked ok. When you got to 100, it mocked you for mindlessly clicking the button, then started counting again with no further messages
It was on the check-in computer at my summer job, and I wrote it immediately after being shown how to write a batch file by the college student I was working with. I’d just run it and tell them to keep clicking and something would happen, then I’d just quietly watch to see how far past 100 they’d go before they got annoyed and asked if it did anything else