The idiom "can't judge a book by its cover" means that one should not make judgments about something or someone based solely on their appearance or external characteristics.

The idiom "a shot in the dark" means taking a risk or making an attempt without any certainty of success, especially when there are no other viable options available.

The idiom "off on the wrong foot" means to start something with a mistake, misstep, or misunderstanding that leads to failure or negative consequences. It can also mean that someone is not behaving appropriately or has made a poor decision from the beginning.

The idiom "off grid" refers to a self-sufficient or independent way of living, free from the use of modern technology and infrastructure such as electricity, water, and internet. It can also refer to a person or thing that is not part of a larger system or network.

The idiom "aid and abet" means to give or provide assistance, support, encouragement, or aid to someone or something, especially in a legal case. It can also mean to help someone commit a crime.