It is NOT ADVISED to attempt to speak to them like rational human beings. They have NO INTENTION of being rational human beings because they are tapping at their diaper closures like a pistol in a holster, dude (I'm your huckleberry). They are watching your heart beat faster. They can feel it from across the room because of all that bonding you did with them as newborns! They think this is hilarious yet they are cool as a cucumber because They know they hold the cards.
Please do no not try to employ boundary lessons at this time, I get that you want them to make good choices on their own, but this? This right here is GO time.
So instead of trying to calmly walk to them lest you startle them into ripping that diaper off? Hey, guess what? They are going to rip it off anyway, man! That's the entirety of their goal. Never forget that you are Johnny Ringo, they are Doc Holliday. So here is what you do....
Using your best and most ridiculous loud, but non-scary, voice (think Ed Grimly/Pee-Wee Herman/The Swedish Chef) begin to go hog wild with your legs and arms as you travel toward them. Don't look them in the eye as this will be met as a challenge. Your aim here is to throw them off long enough to get near them. This technique, when properly applied, will delight the child's brain long enough for you to grab the wipes and properly change that diaper.
Happy Sunday, My Lovelies. It is my hope for you that you never need this lesson. But you know...you probably will. You can do this.