"The road to Hell is paved with good intentions."

An aged old proverb reflecting on when people perform what they think are well-meaning, helpful acts, but in reality, only worsen a bad situation.

A day seldom goes by when people won't notice an example of this, either on the news, in the book they're reading, or simply walking down the street.

This could be anything from someone making promises to help out, but never delivering on them, to saving money for a less expensive cleaner, which turns out to radiate toxic fumes, resulting in the building being closed for an indefinite length of time.

Ideas which might seem good in theory, but are impractical, illogical, or even harmful, in practice.