Final answer:
The question is related to an opinion or assessment made by an individual named 'Summer' about the biggest crime at theme parks. Without context or source, a factual answer cannot be provided. The problem seems to pertain to a specific text in an English context.
Step-by-step explanation:
Based on this question, a direct response cannot be provided without the context of who 'Summer' is or a source that details her thoughts on the matter. If we are to guess, we'd typically expect that 'theft' is often a relatively large concern at theme parks due to the number of people and the opportunities for misplacing or stealing belongings. However, without a specific statement or documentation from 'Summer', this cannot be confirmed as a fact. The answer to this question strongly depends on the given text or the source from which this question is derived.
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