But don't worry - it was all part of the plan.
Yes, a chap called Matt Van Vliet, who lives in New London, New Hampshire (we see what you did there, American cousins!) decided that a really cool way to propose to his girlfriend Samantha Labo would be to enlist the help of the local police - and have them pull them over and arrest him.
But of course!
Click play to see how things turned out - and to see Samantha's tears of pain turn to tears of joy. Aww. "It went from being the most devastating thing I have had to witness, to feeling the most ecstatic I have ever felt," she wrote on YouTube. She's not kidding - Matt, we think you're lucky she didn't knee you in the groin..!
(Via Viral Viral Videos)