Write a summary of the following paragraph in one sentence.
The creature appeared small and harmless at first, but with its sudden movements, it quickly became clear that it was not to be trusted.
The small creature seemed harmless but its sudden movements indicated it was not trustworthy.
Complete the following task based on the instruction and optional input provided.### Instruction:
Write a summary of the following paragraph in one sentence.

### Input:
The creature appeared small and harmless at first, but with its sudden movements, it quickly became clear that it was not to be trusted.

### Output:
The small creature seemed harmless but its sudden movements indicated it was not trustworthy.