But why can't a GUILLOTINE go through airport security?

My Mom, dad, and I, go through Kindles like water. My Amazon account is now up to like: "Julie's 7th Kindle". My mom didn't like the touch screen, so I bought her the Kindle 4, where you press the buttons on the side to turn the pages. I came up from the ocean and plopped my beach chair right down on the Kindle, cracking the screen in half. I bought a Kindle Fire for my cousin in the Masonic Home, but she didn't use it once. It sits in my room haunting me. This Christmas my dad had his Kindle Paperwhite stolen out of the lost and found at Myrtle Beach TSA. He decided to take this bagel cutter, (that was a gift) in his carry-on luggage. And couldn't understand why they wouldn't let him take it on the plane. TSA made him go back through security and have them put it in his checked luggage. He's explaining this to us, and was mystified that they made him surrender it. This! Bagel cutter! A GUILLOTINE! With a 4 inch triangular pointy knife. Dad! Seriously! He said, "But it had the plastic around the knife" OK. Because plastic can't be stepped on and broken. And that lethal knife pulled out, and used to take a plane down. OHHHhhh...... So. He had to go BACK through TSA to Spirit, where the woman at the counter (after giving him a raised eyebrow) had to run in the back, find his luggage, and put the GUILLOTINE in there. Then my dad had to go BACK through security, take his Kindle out of his carry-on, and put it on the machine. But, he was so flustered over the whole "GUILLOTINE" incident, that he forgot to grab the Kindle And he didn't remember it until AFTER he was in my car, and at my brother's house, and then still, until he was back at my house. Where we all searched diligently for it, with no luck. When they got home and he went through TSA, he realized that maybe, with "GUILLOTINE-GATE", he had forgotten it there. So he searched, and asked, and looked in Lost and Found, but it was gone. Someone had helped themself to a paperwhite Kindle. Merry Thieving Christmas to them. Fortunately, I had my mom's touchscreen Kindle to send to him. It doesn't light up. But it's a Kindle. "Julie's 8th Kindle."