Final answer:
Conversion does not occur when a person has regained possession of goods that are rightfully theirs, which is the correct answer to fill in the blank. Conversion involves unauthorized control over property and is applicable in instances of theft or deceitful acquisition followed by destruction, but not when reclaiming one's own property.
Step-by-step explanation:
Conversion occurs in instances of unauthorized control over someone's property, which can include stealing or destroying another's property. However, conversion does not take place when a person regains possession of goods that are rightfully theirs. The instances described in the question can be understood as follows:
- a person has regained possession of goods that are his own - This is not a conversion as the person has a legitimate claim to the property.
- a person steals goods belonging to another - This is an example of conversion because the person exercises unauthorized control over someone else's property.
- a person acquires possession of goods through deceit and the goods are destroyed - This would also be conversion due to unauthorized control and subsequent destruction of the property.
Therefore, conversion takes place in all of the following instances EXCEPT when a person has regained possession of goods that are his own.