I have found out, painfully, that size does count. A reader of this column, Sally, has accused me of avoiding this very serious issue and what others think about it.
Indeed, I have ducked the issue because I do not want to lose friends and others in my life by giving this issue an airing.
Sally said that a driver had overloaded his taxi up to the windscreen wipers and was furious when he realised that one seat had only two people on it.
He threatened to kick them out if they did not contort and embrace each other to make space for two more passengers.
Sally said it was unfair because the woman next to her was "three-quarters" just on her own. She was immovable and another passenger would have had to sit on top of them.
Sally was in a quandary because she did not know how to express concern about the woman's size without being offensive. She resorted to asking the driver to come and check the space problem.
The driver took one look, laughed and said: "Oh, magwinya [fatcake]."
As you can imagine, Sisi Magwinya was hurt.
Many people have a similar story to tell. Light-skinned women often complain that large people often squash them until their legs are pink and blue. This causes a lot of unpleasantness at home because their partners accuse them of engaging in extra-mural activities.
There are taxi organisations that adhere strictly to the rules and carry the correct number of passengers. Others do not think the rules apply to them.
I once boarded a taxi from Highgate to town that was half- empty. At the next corner a sizeable woman decided to plonk herself next to me, ignoring all the other seats that were available.
When I asked her if she could take another seat because it was hot, she exploded.
She said she knew that skinny types like me hated fat people because we thought they would crush us.
She said she was proud of her size - but that did not mean she would hurt me.
She accused me of being biased and of being brainwashed by European magazines into being a sorry, sickly parody of a woman.
She made other unsavoury remarks about my partner's poor taste and lack of sexual satisfaction.
I did not reply. I was thoroughly intimidated and prayed that I would reach town safely because she was huge.
I kept glancing at the driver for help, but all he did was increase the volume of the music.
I know one woman who buys umngenandlini, snacks, for her children at the taxi rank. Once in the taxi she will chomp on an apple, then popcorn, then peanuts and, lastly, suck on ice lollies.
The drivers never scold her for eating in the taxi. It is as if she has muti that makes her invisible. The result is that she has a shelf up to there and a seat that defies description.