Don’t try this at home, bunnies getting their whole bodies wet can make them very sick (they can’t really warm back up fast enough, and all that bunny fur also prevents them from drying off easily) or stressed to the point they go into shock. There are some special exceptions where you can shower/bathe a bunny and the video’s circumstances are one of them (they explain it in the description). Notice how the person makes sure not to get the bunny entirely wet.