catch sb off guard/by surprise›to surprise someone and cause difficulty for them: A lot of taxpayers will be caught off guard by their new tax liability
catch sb's eye/catch the eye of sb›to get someone's attention, or to be noticed by someone: The high-profile plan has caught the eye of a national audience.
be/get caught up in sth›to become involved in something, often without wanting to: The firm was caught up in the near-collapse of one of the world's largest hedge funds.