All students who wish to graduate to the surface will please recite:
1. Thou shalt not throw stones.
2. Thou shalt not use dynamite.
3. Thou shalt not yell in caves.
4. Thou shalt not get Satan's attention.
5. Thou shalt not desire a surface existence before thine release.
6. Thou shalt not turn this into a mining operation.
7. Thou shalt not make unseemly noises in the dark.
8. Thou shalt keep thy mindshafts concealed.
9. Thou shalt obey thy taskmaster.
10. Thou shalt not feed the bats.