Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: It is an "insult" for the prime minister to describe disruption to trade across the Irish Sea border as teething problems, a DUP MP has said.

Brexit: MP says teething problem remark is an 'insult'