One time in college I bypassed client-side validation to order a burrito in a slightly earlier pickup window. More recently, I unhid html elements for features

One time in college I bypassed client-side validation to order a burrito in a slightly earlier pickup window. More recently, I unhid html elements for features that were "disabled" on an ISP provided router. You can query an LLM for "a bookmarklet to show hidden elements and enable disabled inputs".