I reply to the query of why I’m not wearing (or do not wear) anything on my feet thus: “For the same reason you aren’t wearing chain mail!” Then, of course, I usually have to explain what chain mail is.
To the more usual question which SBL abbreviates “WAYS” (where are your sh**s?) I have two responses. The first, more common. accompanied by a condescending look, is, “I don’t wear such things” implying that doing so would be beneath my dignity. The second, usually to evoke a laugh, said with an expression of extreme disgust such as would be exhibited by the reaction to putting one’s hands in excrement, “Ewwwww! You said the ‘S’ word!” which makes the asker review what was said to figure out to what “S word” I am referring. Then the question in the forum title is asked.
One thing I often am asked about barefoot running is, “How do you do that?”. Now that has to be one of the stupidest questions a person could pose! My answer, with a raised eyebrow, is, “I just put one foot in front of the other!”. Naturally, that makes the asker feel really dumb!
So, when asked such questions, try to come up with something like this.