It's a sign, to me at least, that Arad is gritty and hands-on rather than the sort of designer who draws blobs on screen that someone else (a poor Italian engineer) has to figure out. There were prototypes all over the office, including one for his PizzaKobra light for iGuzzini, which arrives in a pizza box and cleverly rises up like a snake. His conference table is surrounded by the Tom Vac and Ripple chairs. The fact that they were made for two competing manufacturers (Vitra and Moroso), but are as related as I am to my children, would, you might think, cause alarm, but Arad handled it. 'The Ripple chair is a sequel to the Tom Vac. I was interested in knowing what would happen if the backs criss-crossed. I sent the drawing to Rolf Fehlbaum [of Vitra] and said: "Do you have any issues with this?" He answered that he expects products by the same designer to have things in common.' An ordinary mortal designer might have never have had his calls returned, but Arad is Arad.