Designing a cryptic warning message requires the clever use of language skills to convey potential warning information through hints, metaphors or indirect methods, while making it difficult for the recipient to detect its true intention when reading it for the first time. Here are some design ideas and examples for you: 1. **Use metaphor**: Choose a metaphor related to the potential problem and mention it in an indirect way. 2. **Use proverbs or idioms**: Use well-known proverbs or idioms and give them new meanings in a specific context to imply the consequences of a certain behavior. 3. **Mention common consequences**: Describe the negative consequences that may result from a common behavior and let the other party associate it with their own behavior. 4. **Set up situational hints**: Construct a situation similar to the other party's situation and hint the other party by describing the problems in the situation. ### Example 1. The weather has been changeable recently. Remember to bring an umbrella when you go out. Don't wait until it rains to find out that you are not prepared. It will be troublesome then. **Analysis**: "The weather is changeable" is a metaphor for the unstable situation, and "Don't wait until it rains to find out that you are not prepared" implies that the other party should be prepared to deal with possible problems in advance, otherwise they will get into trouble. 2. As the old saying goes, if you walk along the river, you will get your shoes wet. For some things, it is better to stop when you are done. **Analysis**: Quote the proverb to remind the other party that if you frequently engage in risky behavior, problems will arise sooner or later, and advise him to be moderate. 3. You see, someone has been working overtime until late recently, and his body can't take it. Although work is important, you should also pay attention to the combination of work and rest, otherwise you will suffer in the end. **Analysis**: Use the example of others overworking as a situational hint to remind the other party not to overwork, otherwise it will bring adverse consequences to himself.