I was witness to, quite possibly, the most British argument ever. I'll transcribe...
Old Lady: Sah (Sir), you are incredibly rude.
Man: I beg yoah (your) pahdon (pardon), you ah (are) the rude one.
OL: Thaht's (That's) preposterous! I'm cehtainly (certainly) not rude!
Man: Oh, indeed you ah, I'm afraid. Terribly rude.
OL: Yoah horrid you ah! 'Tis astounding how rude you ah!
Man: My God, you ah incorigable! You don't even realize just how rude you ah!
OL: You sah, ah ghastly. A truly unbelievably rude pehson (person).
And on and on like this for a good 3 minutes or so. I had one of those "Good God, I really do live in England." moments.