I share your embarrassment, jaws didn't close properly (think it was "operator error") and my test pull resulted in my dragging the tailgate under the pin. Lucky me, the damage was minimal, replacing the plastic t-gate cap was enough. A $200 lesson learned.
Fear of backing into the pin with the gate up has (so far) prevented the opposite calamity. Live and learn. Still better than sitting in the chair in front of the tube all day.
2013 F-350 CC SB 2WD 6.7PS
2013 Eagle Premier 351 RLTS
-SOLD- 2012 X23B
-SOLD- 2003 Ford Expedition 5.4, Bilstein shocks