is there a need to specify why someone is difficult after calling them difficult?
For example:
Say, someone asks me:
"How is your relationship with your roommates?"
And I reply:
"My roommates are too difficult."
Instead of
"My roommates are too difficult to deal with"
"difficult to deal with explains why they're difficult. Is there really a need to write that extra piece? Can only "They're too difficult" do the job?