Toddler created restaurant mayhem any legal responsibility here?

Say you are at a restaurant and a woman is letting her toddler run about rather than sitting in a seat waiting for the food to come. As a server is passing carrying a hot liquidity dish the child trips on the leg of someone who doesn’t see the toddler but was getting more comfortable in their seat. The child then stumbles into the server and the hot liquidity dish goes down the back of a diner having a meal. They suffer 1st and 2nd degree burns from the dish. Because it happened in the restaurant and by the server spilling the dish is the restaurant responsible for the medical bills of the injured diner, the person who unintended tripped the toddler, or the toddler’s parents for letting them run about loosely supervised? Of is the diner just piss out of luck and has to handle it through their own coverage? Any ideals of legal responsibility here?