Stained clothes are a trademark in my family, so I doubt they have any stain-removing knowledge in their databanks. And my friends are all in my head.
Those are the best kinds of friends. Don’t have any good advice on the stain, except act really surprised when someone tells you there’s a stain on your shirt and declare it must have happened at breakfast/lunch, then ask if they have advice on getting out the stain, and if they do ask them if they will be your friend.