This story from Stuff, apart from the headline, shows some examples of the kinds of general insurance claims insurers can receive. Although we lack the information from reporting like this to determine whether these were attempted fraud some of the alternative explanations for the surprising attempts to claim look unlikely. Link.
These examples are all general insurance (property) claims. If you think that personal insurance - income protection, trauma, and medical cover in particular, may not experience the same kinds of claims, I would be interested to know why. Human nature being what it is, a proportion of all claims are likely to be unsupported by the evidence, depending the the difficulty involved in the claim.