Today in my small group, we were discussing Matthew 23:1-12, which includes
They do all their deeds to be seen by others; for they make their phylacteries broad and their fringes long.
So we talked about how phylacteries were prayer boxes worn tied to the forehead. Jesus was of course objecting to them being used to show how very, very holy the wearer was, as opposed to being a reminder to keep God foremost in the mind. Anyway, it somehow got twisted around so that in the middle of making a point, someone referred to 'prophylactics tied to your forehead' - at which point we all totally lost it.
The next question on the bible study was, "In what way should the faithful stand out?"
We're the ones with prophylactics on our heads, obviously.