An incident.

GWPDA, yclept Irate Scholar : I nearly ran into her one morning, very early, crossing Hyde Park. It was, of course foggy and grey, and in the distance, coming toward me, a striding black smallness, which resolved into Miss Kitt, wearing an unquestionable Blackglama, full length mink. I managed to nod and wish her Good Morning, very quietly. She did the same and strode onward.

Properly done, and a story properly told.