This was at the iTunes festival, London in 2010. Surprisingly, Rick was standing in the crowd, right in front of me about 60 mins before Underworld were due on stage. Rick was really getting in to "Kele", but I couldn't resist the urge to say hello, and say how much I appreciated his work.
After the picture, Rick said that he hated fanboys, and told me to piss off so he could have a smoke.