Well, despite the fact that many bunnies do have a big personality, I’m pretty sure your buns aren’t mocking you
The reason they are getting close to the box is because they know the smell of their litterbox, and know thats the area they are supposed to use as the bathroom, they probably just haven’t gotten the concept of the fact that they need to get IN the litterbox, and not just NEAR the litterbox. Babies are not perfect at litter training right away, and even my bunnies that are 100% litter trained do poop outside the box to mark their “territory” from time to time. There are some litter training tips on this site under the “Bunny Info” tab at the top of this page which I would recommend. Giving them a smaller area to play in will help, because they will just “mark” that area. When you clean up, put the stray poops into the litterbox to help them understand thats where the poops belong. Unfortunately, baby bunnies require a bit more patience than ones that are older, fixed, and litter trained, but the fact that you are able to train them now is much easier than beginning litter training with a bunny that is already into adulthood and not yet trained. The consistent pattern of picking up the stray poops and putting them in the box, and cleaning up the pees outside the box will definitely get you on the right track. Is your bunny’s hay in their litterbox too? That is what got all of my rabbits litter trained, the combination of cleaning up promptly, and putting their hay in their box really got them litter trained very quickly.