when I was getting marriedmy best mate, a plumber, was doing the speech thing.....he stressed on the bride and groom(us) the necessity of knowing the facts of life from the outset etc....and he said" When tha missus & I got married, we didnt know the difference between putty and vaseline..."
when the laughter(read : pregnant silence) died...he continued.."And we all know what happened....ALL OUR WINDOWS FELL OUT!!!!!"