"They can cause frustration in working out and sometimes even lead to injury," he notes.

This causes great frustration for the individual and can often lead to anger as well.

Exchanging information is a great idea but it could cause frustration if we do not have action as a result.

Being exploited appeared to cause deep frustration and anger in most students, she said.

Poor delegation, on the other hand, might cause frustration, and confusion to all the involved parties.

All of the changes have caused worry and frustration among youth employment groups.

This will cause frustration and loss of important time.

A lack of information even 12 months after the hurricane has caused confusion and frustration.

"This caused enormous frustration for law enforcement and the public," he said.

Or do they simply make things more complicated and cause unwarranted frustration?