Indeed, back in the 90s was moving out of an apt in NY state and wanted to store them at a family member's house for the summer while I traveled. The Canadian border agent asked what all the stuff in the car was and I said my things, accused me of wanting to sell things (mostly clothes, some books, bicycle, and a computer) and made me go into the office to pay sales tax if I were to sell everything. Then had to stop back at the office when driving back to NY to show nothing sold and get the tax back. Infuriating and the most expensive thing, computer, was bought in Canada so untaxed...