Fluent in 5 languages! I often hear that from cabin crew when they want to big themselves up (why is it always 5?). That and 2 degrees or running their own business. The reality is that that immaterial, the requirements to be BA cabin crew were a smattering of grade C GCSEs / O levels (just Maths and English I think) and basic proficiency in one foreign language. Anything else is overqualified for the role.