Well a good one I use is if you have a extra spot where you keep your Rc's move them around once or twice a week and then work one in to your set , and sence you have been moving them around they can't rember witch ones you have had and witch one is the new ones...[?]
And another good one is "OOH I traded that with a friend from the club from over seas for some of thoses parts you say are always in the way DEAR!!"[}]