Well, here I am, Mr big shot with my DCC MRR..All the bells and whistles I'd want, but still careless about RR safety...!! With DCC, it really gets REAL sometimes ! I had tied up my brand new HO Bach RS3 on a stub ended track and the 'big shot' then hits 'recall' and goes over to the mogul in the engine house..I'm futzing with her and some programming or at water tower gettin' my big shot RR CEO jollies when I hear ' clop clop, kerbangedy bang bang ,,BANG ! Oh, %$*.^%^ !!! ..On the slab floor is my favorite tank car and rest of cars behind RS3 heading for the same fate !! I paniced and ran and UNPLUGGED PowerCab preventing a 2nd car and then the RS3 from the fatal 5 foot drop !!! Apparently what I did was assummed I had 'set the hand brake' on the RS3...Nope ! It was crawling at 2 scale MPH..while I was on my CEO's 'date' with the mogul !! And, my hearing is poor from 35 years of bass playing..You guys probably would have heard diesel's whine, but, until I get a hearing aid, I can't very easily without cupping my ear. I'm not deaf, but have tinnitus, ironically, a hissing, whistling sound 25 hours a day, eight days a week like a steamer at blowdown ! ) Like, W O W !... The tanker's crashing noise got my attention in the nick of time !! It only broke off a stirrup..What would the loco have broken ? !! My Heart !! ...PHEeeeW ! Saved by the tanker !! It was for me a HUGE wake-up-call about RR safety..Ya gonna own and run one? Then do just that, but next time to the nines !! I believe that was the second time of a similar scary close call , to boot !! 3 strikes and your out !! Next headline: " MRR CEO FIRED ! " Oh, yeah, BTW, stub-end has no bumper, and at a cliff !! Right-on boss !...Doh !