Understand that 'play with fire' refers metaphorically to taking unnecessary risks, not actual fire. Investing all your savings in one stock is like playing with fire.
Pro Tip 2/3
Consequence Aware
Remember, the phrase often implies negative consequences as a result of risky actions. You might be playing with fire if you cheat on the exam.
Pro Tip 3/3
Idiomatic Usage
Recognize 'play with fire' is an idiom and shouldn't be taken literally in conversations. Spreading rumors about your boss is playing with fire.