Your customs experiences re-entering the US from Canada?

I don't understand the posturing and getting so wrapped around the axle over this. If it bothers you so much to be questioned then don't cross the border. I've done numerous crossings and only had one issue trying to get back in to the US. If you respect them they will generally respect you. If you are arrogant and non-cooperative just to be arrogant and non-cooperative then you deserve to be detained. They are doing their jobs to protect both countries. Get over yourselves and deal or don't go.