Think before you speak!

Today one of my students was being silly so I said to him "do that one more time and I will jump on you from a great height" at which point the entire class burst out laughing. One of them then said "miss, you're the shortest person in this room" . By this time I was in stitches myself when another said " what do you class as a great height given you have to stand on the chair to switch on the projector. Fun times.
Now chilling from the not so great height of an armchair in Glasgow.