Write a professional-sounding email to a restaurant about a bad experience. Make sure to include the fact that avocado skin was found in your food, which caused you to get sick because it was an unexpected object. Have the email be just one paragraph. Sign the email with Joey. 
To Whom It May Concern, 
I recently ate at your restaurant, and I wanted to pass along my experience. I ordered a meal that I've ordered several times and really enjoy. However, this experience was not great. After taking a few bites, I noticed a foreign object in the food. I quickly spit it out and discovered that it was avocado skin. While this may seem like a minute thing, it was not for me. If I get an unexpected object or unexpected texture in my food, it causes me to get sick. I understand that mistakes happen. However, for the price I paid, I expect better. I've also been a long-time customer, and nothing like this has ever happened. I wanted to bring this to your attention, so greater care can be taken to prevent this from happening in the future. I appreciate your attention to this matter. 
Regards, 
Joey