During my last trip, I noticed that the Red Carpet Club staff didn't staple my ff certificates to my boarding pass. I thought she had forgotten so I asked if I needed to have the certificates stapled to the boarding pass. She told me that United had a new policy which required the check-in staff to collect the ff certificates. It seems that some naughty ffs were taking the staples off the boarding passes and repocketing the ff certificates before boarding. I guess they must have carried pocket staplers with them to reattach the boarding pass to the ticket. What will people think of next to "cheat" the system?