Agree, it’s a functioning teapot. Definitely 418. If the cup is empty, then a 518 teacup is empty error would be more appropriate but as long as there is pipin

Agree, it’s a functioning teapot. Definitely 418. If the cup is empty, then a 518 teacup is empty error would be more appropriate but as long as there is piping hot tea - 418 for me. /s