I cannot claim ownership of this, I saw it on an amateur radio bulletin board many years ago and I just found it when trawling through some old files on a backup drive. Enjoy
TEN COMMANDMENTS OF ELECTRICAL SAFETY
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1. Beware of the lightning that lurketh in an undischarged capacitor, lest it cause thee to be bounced upon thy buttocks in an ungentlemanly manner.
2. Cause thou the switch that supplieth large quantities of juice to be opened and thusly tagged, that thy days may be long in this earthly vale of tears.
3. Prove to thyself that all circuits that radiateth and upon which thou worketh are grounded and thusly tagged, lest they lift thee to radio frequency potential and cause thee to radiate also.
4. Tarry thou not amongst those fools that engage in intentional shocks, for they are surely unbelievers, and are not long for this earthly vale of tears.
5. Take care thou useth the proper method when thou taketh the measure of high voltage circuits so that thou dost not incinerate both thyself and thy meter, for verily, thou hast no serial number and can be easily replaced, but the test meter doth have one, and as a result, bringeth much woe unto thy supply officer.
6. Take care thou tamperest not with interlocks and safety devices, for this incurreth the wrath of thy safety officer and bringeth the fury of thy supervisor upon thy head.
7. Workest thou not on energised equipment without proper procedures, for if thou dost so, thy colleagues will surely be buying strong liquor for thy widow and consoling her in other ways not generally acceptable to thee.
8. Verily I say unto thee, never service equipment alone, for electric cooking is a slothful process, and thou might sizzle in thine own fat upon a hot circuit for hours on end before thy maker sees fit to drag thee into his fold.
9. Trifle thou not with radioactive tubes and substances lest thou commenceth to glow in the dark like unto a lightning bug and thy wife be frustrated nightly and have no further use for thee except for thy wage.
10. Commit thou to memory all the words of the prophets which are written down in the tablets of instruction and abide by them so that thy days be long in this earthly vale of tears.