Yeah no shit, although it might sound "cool" to post something like this on the board, in actuality that was a retarded way to get get your vehicles unhooked. As previously stated unhooking your hitch wouldn't have done you any harm and might have reduced the damage that occured.

"*** This Xterras bumper is tested and proven to stop another vehicle without damage to said Xterra... and very serious damage to anyone who hits it."

Yeah it might not look like you had any damage but whens the last time you had your rig on a frame rack. Even with frame stiffeners a hitch is still a lever.