You’ve probably done this many times before if you use keyboard shortcuts. You’re editing text and want to switch to the Direct Selection tool by hitting V (the shortcut to switch to the Direct Selection tool), or maybe M (to switch to the Rectange Shape tool) – but wait, you’re in a live text box, so instead of switching tools you end up typing the letter V or M. INCREDIBLY ANNOYING! Thankfully, if you hold the Command key down and click the text box, it deactivates text edit mode so you can safely switch tools with your keyboard.