This is more to all the rest of you, than Fistandantilus specifically.
I for one am getting rather annoyed at all this constant interfering in challenges. It's cold comfort to the person losing that you apologise afterwards.
So, I'm asking for some small effort by all of you. Before you're off to slaughter your favourite enemy, or some random person, check challenges.
Don't wait for them to complaint. The 'I didn't know' excuse is not good enough, because it's not exactly well hidden secretive information.
Of course, if you're doing this deliberately and are fully intent on interfering in a challenge, then you need not change your behaviour (despicable though it is)
Written by my hand on the 27th of Mournsend, in the year 1054.