I had an examiner tell a story of a guy flying an aztec from the Bahamas to Naples or FLL. Did he preflight and went on his way, when in the patten back in the states tower asked if he was dragging a banner or sign, he has no idea what they are taking about. Upon landing and parking at the FBO, there was a 100 pound Caribbean "tie down" (cement block with a chain attached) still hooked to the rear tiedown. Never knew it was there or felt it. Thank god they are overpowered.