Danger

the lion’s den

Meaning: a place which is uncomfortable

Example: Two of the new students were thrown into the lion's den as their ragging was taking place. Read on

warn off

Meaning: inform someone forcefully to stay at a distance

Example: The board was placed near the manhole to warn off the kids from playing there. Read on

throw caution to the winds

Meaning: to take a decision without caring about the negative effects that come with it

Example: The caretaker threw caution to the winds when taking the baby out of the house even though he was already sick. Read on