While I was cleaning the cage, I accidentally dropped a pigloo and made a loud noise. It spooked the pigs, so they tried to dash to the other side of the cage to hide. Except that's the side I was cleaning, so the pigloos weren't back in there yet. They skidded to a stop, side-by-side on the ramp.
That was funny, but even funnier was, after assessing the situation, they calmly walked back over and continued eating.