... and not to yield

I’m not sure if this helps:

But it’s what Dr Walker did next that I find particularly suggestive. He cycled about wearing a black wig that made him look - at least to his satisfaction - like a woman from the rear. He found that motorists gave him a wider berth than normal, which he ascribed to a gender effect: motorists are more considerate of women rather than men cyclists. Of course, there is another possibility, namely that Dr Walker was so poor a female impersonator that motorists, possibly out of solidarity with real women, or conceivably because they thought he looked barmy, steered clear. I haven’t seen the photos of the experiment, so I can’t be sure.