If such a situation were to occur, here's how you could handle it:
Immediately stop what you're doing and assess the situation. Take note of the dirty dishes that were affected by your child's actions.
Turn off both the hot and cold sides of the faucet to prevent any further mixing of water temperatures.
Take the dishes that were spat on and rinse them thoroughly with clean water. Use dish soap and scrub them to ensure they are properly cleaned. Consider using gloves during this process to maintain hygiene.
Once the dishes are clean, rinse them again with hot water to remove any remaining soap or contaminants.
After ensuring the dishes are clean, you can resume washing the rest of the dishes as you normally would, using hot water.
After finishing with the dishes, it would be appropriate to have a conversation with your child about their actions. Approach the conversation calmly and explain that drinking water from the faucet and spitting on dishes is not acceptable behavior. Emphasize the importance of maintaining hygiene and respecting shared spaces.
Depending on the age of your child, you can also discuss the consequences of their actions, such as the need for additional cleaning and the potential for spreading germs.
Finally, encourage your child to apologize for their behavior and help prevent similar incidents in the future by reinforcing proper hygiene practices.
Remember, it's essential to approach the situation with patience and understanding while teaching your child about appropriate behavior and hygiene practices.