I can tell you that some people have shared stories about strange things their ex-partners have stolen from them. These stories vary greatly, and the strangeness of the item stolen often depends on the context and personal preferences of the individuals involved.
Some examples of strange items stolen in these stories include a favorite childhood toy, a single shoe from every pair owned, a collection of empty cereal boxes, a prized pet fish, or even the contents of a spice rack. Every situation is unique, and these occurrences are certainly unusual and sometimes humorous. However, it's important to remember that stealing is not acceptable behavior, regardless of what is taken, and it's essential to respect other people's property and privacy.