Would someone kindly ELI5 this for me?

Upload a photo which includes your face and genitals, and AI will validate your age and sex!

Locksmith here. In a pinch, I’ve ground the back of a jigsaw blade down, leaving just the teeth on the blade (short enough to fit above the key). Jigsaw blades, especially those intended for metal, are hardened and will easily bite into just about any key, giving enough leverage to pull out the broken piece.