I won't pretend it's an obscure thing but if you're not in the know: the outro from Ashamed has often been played following Showbiz since 2000, during the last legs of the Showbiz tour, almost systematically on the OoS tour and since the song was scarcely brought back in 2017 (not during the Absolution/BH&R eras though, and one time in 2019).
More than that, the 1996 demo of Ashamed from the Newton Abbot Demos do not feature the same outro riff. The 2 recorded live performances of Showbiz from 1997 don't either, but it starts to make an appearance in 1999, among other outro riffs. It briefly retires for the scarce appearances of Ashamed in full around 2000.
Because Showbiz's big and chatartic final explosion blends so nicely into Ashamed's as chatartic outro riff, I always speculated that the outro was intended to be included in the "real" version of Showbiz. For some reason they would have dropped it and stuck it in place of Ashamed's original outro.
This is pure speculation, even head canon if you will because I couldn't find any live performance of Ashamed in full between 1997 and 2000 that would have confirmed it still had the old outro. I know it has also been played after New Born but it wasn't systematic (and it never felt as good in my opinion).
thanks for reading my stream of consciousness