An Amsterdam - Schiphol arrivals ATCer to be more exact who said goodbye to every pilot in his own language. I wondered what the Brits would get and it turned out to be a cheery "toodle oo Flyer xyz". Made us both laugh up front.
And how about the very polite LATCC- Thankyou sir, good day sir, ten degrees left and report the heading please sir.... What a nice chap.