Using 'give short shrift' often implies rudeness or impatience. He gave the customer's complaint short shrift, causing more frustration.
Pro Tip 2/3
Social Context
Best used in informal situations, could be seen as disrespectful in formal contexts. During the meeting, she gave his ideas short shrift, and others noticed.
Pro Tip 3/3
Use with Objects
The phrase can refer to concepts or proposals, not just to people. The new policy gave environmental concerns short shrift.