Emphasis Preaching Journal

(L, P)
I can still remember the words of the chemistry professor:

"Class, this is not a play ground. In this laboratory we are about serious business. A mistake in here could well mean serious burns, costly repairs, and even the possibility of death. Heed my words. Do as I say. Do not deviate from what I instruct."

After these words it was very difficult to perform the experiments. The professor made his points. His admonitions were adhered to.