border shopping
n.— «Since coming back to Canada, he’s tried to cross again, unsuccessfully, at other ports of entry—because his U.S. employer still wants him back. Gibbons said, each time, he was made to feel more and more like a criminal. “They (Customs and Border Protection) then accused me of border shopping and said they were going to put me in jail over the weekend up in front of an immigration judge,” said Gibbons.» —“U.S. border guards bar skilled Canadian from his job” CBC News (Canada) mar. 31, 2008. (source: Double-Tongued Dictionary)