Generate a proverb that illustrates the given situation.
A person who likes to surprise others.
"Don't let your right hand know what your left hand is doing."
Complete the following task based on the instruction and optional input provided.### Instruction:
Generate a proverb that illustrates the given situation.

### Input:
A person who likes to surprise others.

### Output:
"Don't let your right hand know what your left hand is doing."