Many English learners have trouble with possessive pronouns and adjectives. This is especially true for English as Second Language (ESL) learners. Subject pronouns just seem to be weird and it takes time to get used to the many forms.
Be sure to take a look at this great article explaining all about what the term 'caught red handed' means. Read about its origin and who began to use it first, why and where. Also, some other cool facts about the popular and widely used phrase.