The phrase "frustrating experience" means something that makes you feel annoyed, upset, or irritated because it is difficult or doesn't go the way you wanted. Full definition
When a pet is suffering from pain, it can be a very frustrating experience for pet owners if they are unable to do anything directly to alleviate this pain. (waterlooanimalhospitalok.com)
This behavior often develops in dogs who are stressed, anxious, or bored, and can be a very frustrating experience for the owner. (dogtrainingminneapolis-mn.com)
A hit and run accident can be one of the most frustrating experiences for a driver. (armourinsurance.ca)