Barbara Petty, another difficult client, took a more promising step.

Yes, you are a difficult client; I saw that at once.

He was brilliant at handling the most difficult client.

She was known for taking on difficult clients, including Mafia lords and drug dealers.

"To Rick and his taming of a difficult client."

That Intels are the most difficult clients, that's all.

For two days he had been in Chicago that city of rough souls on behalf of his most difficult client.

"Dixon, have I mentioned before that you are my most difficult client?"

For example they may be asked to prepare a training session on how to deal with difficult clients or one on housing benefits.

The format of the show allowed different, and usually difficult, clients to appear in each episode.