"Ok, Harry, rule number one of our, " she paused a second, "well, relationship is we have non-work time. Tonight is a non-work time. Tonight we don't discuss work, we don't think about work. We just have fun."
She examined the pen, "That might work, Harry. Oh, and Fred taught me this gag charm for self inking quills, to make them not work for anyone but the owner. I wonder if I could modify it to work on the pen."