The idiom "beck and call" is used to describe a situation where someone is easily accessible or responsive, either because they are physically close by or because they have made it easy for others to reach them.

"Pedal to the metal" is an idiom that means to give something or someone your full effort or attention, to work as hard as possible, or to go all out.

The idiom "up to the mark" means that someone or something is performing well, meets expectations or is of good quality. It can also indicate that someone is behaving properly, correctly, or as required.

The idiom "fish rot from the head down" means that a person or thing is infected or corrupt from the top down, usually due to poor leadership or an unhealthy influence. It is often used to describe a situation where a problem starts at the top and spreads throughout the organization.

The idiom "familiarity breeds contempt" means that when someone becomes too familiar with someone or something, they start to dislike or despise them more. It suggests that when we get used to something, we can become less appreciative of it and even begin to disrespect it.