There is a user interface pattern that predominates these days, where a view/page will be loading/changing, and it will reflow between when you click/tap and when that is processed, causing an incorrect response. Sometimes I get caught in a loop, where I try to select something repeatedly and every time it jumps just as I choose it.

I always thought that was incompetence and not malice, but maybe apparent interface glitches are a significant profit center.