If you want to see airport security take someone down, cut out an aluminum foil silhouette of a pistol and slide it into a book or magazine they are taking with them. I did that to my roomie in the 80s, and they took him down hard. He punched me when he got back from Florida, and since I deserved it I let him. But gawd, we did have some laughs about it too.

I guess these days, it wouldn't be THAT funny. But if it's someone you dislike...