"I´ve overheard this at the tower frequency at Amsterdam Schiphol Airport (EHAM) in The Netherlands..."
Tower: KL123 you are cleared to land on runway 24
KL123: (with a loud background noise) Thank you sir, KL123 cleared to land runway 24
Tower: KL123, what is that high noise on the background?
KL123: It's just normal cockpit noise
Tower: You sound like a Fokker 50 cabriolet
KL123: Fine, I'll close the window