Holiday lights are the main scenario (which is why these signs are often seasonal). Someone will spend hours stringing up lights only to find that they strung b

Holiday lights are the main scenario (which is why these signs are often seasonal). Someone will spend hours stringing up lights only to find that they strung backwards with the female end dangling near their desired outlet. USB cables / “plug & play” have made this more confusing for those with no understanding of electricity; nor do we as a society routinely educate children (or adults) on basic electrical responsibility.