(A physics reference; never matter.)
So I'm entering the Ben-Tzvi Institute last night for what proved to be a very enjoyable experience. The guard, as is usual, asks me if I'm carrying weapons. (I'm always amused/bemused by that question. They must be asking for some other reason, right?) My companion and I laugh, and go, "As a matter of fact..." I turn around and show him the three plastic swords sticking out of my bag. We all nearly collapse laughing.
Why am I carrying plastic swords in my bag? Come to Beit Shmuel, end of December, and you'll know.