LOL
Ya, this happens all the time in my tank and I always love watching it. The best was this one time when I added some freshly chopped fish to the tank and I had a massive battle royal between my Seastar, emerald crab, two hermit crabs and then one of my olive snails got a smell of the food and joined in... it was so crazy to watch, the olive snail ended up winning the tittle and then burried himself into the substrate to enjoy his meal.