I have a somewhat overpowered 3 stage rocket for the stage of career I'm at with about 10k dv having not yet even attempted a Mun landing. Returning today from a manned Minmus fly by for science I still had 2k dv remaining and tried to see if I could reverse my orbital direction. I aerobraked without burning until suborbital and then burnt everything I had left retrograde. I didn't quite get the reversal but was down to a surface speed of about 80 m/s at 35km. I have used this craft at least a dozen times, my normal procedure is to retroburn everything left in the tank, detach the engines for landing and let the difference in drag separate us. Without thinking I tried to do the same this time, turned prograde (not sure why) and released the tank. Which then preceded to follow me down. Desperately trying to do anything to get out the way I was pitching in circles trying to get some separation, I eventually had to fire the parachutes with the tank about 200m above jebs head. The instant they were deployed the tank shot past me taking one of my landing struts with it and putting me into a spin which was fortunately easily recoverable. I was too focussed on dodging to get any pictures.