At my next job interview. "So, do you have your lpic or redhat certification in vigor?"
Me. "Better. I have these, motherfucker."

(They arrive a few days ago, but I couldn't show them till now. If you're living outside US and worries about if you can get your stickers, be sure you will. They made all their way to Spain, and had no trouble to receive them. Be patient, and eventually they'll arrive safely and beautiful.)