There’s a frangipani tree that hangs over the pool of our villa, which overlooks the beaches of northern Sanur. The frangipani is flowering white and yellow, except for one branch near the centre which flowers pink. We notice this, puzzle over it a while, and investigate no further at the time. Then a couple of days later, while swimming, I come right under the branch in question, and find there something wrapping around where it connects to a larger branch—the pink-flowering section grafted onto the otherwise-yellow-white-flowering tree.