I met up with my son John on Monday for a spot of lunch in downtown Tooting. John is quite the foodie and a talented cook. He also works in a food lover’s paradise – Borough Market near London Bridge – where he and his brother run Whirld, a unique fudge shop. I took John on a quick tour of the two Tooting markets – one, somewhat predictably, called Tooting Market, and the other, Broadway Market. These two market arcades sit side by side in Tooting Broadway, and despite having visited both of them countless times, I still find it easy to mix them up. Even though John was born…