Omg that’s terrible service. 😡 As someone who's worked in a restaurant, this is a big no-no, and they should've at least comped your meal or given you a voucher. Def talk to the manager or leave a review online, that's not okay.
You sure it wasn't just a really weird shaped chicken? Some of those poultry farms have chickens looking like aliens from Area 51, all kinds of strange things. But then again, Chez Guevara is known for its... *innovative* approach to ‘poultry’. Might want to take that meal as a sign …