Lucas, I'll be the first to admit I can be quite immature (and cheerfully so!) but I really don't see what I may have done here that could be taken that in way. I also took Les's post to mean "this is a rather obscure and unusual area to find a bug in, why did you even try this?"... and I think he does have a point there and that what he wrote was quite funny.
Maybe you read something in this that I missed entirely; If I accidentally wrote something immature or offensive I apologise and I assure you I wasn't at all offended (more like pleasantly surprised) by Les's joking post. After all; negative durations, while they can be practical, may well seem counter-intuitive in a funny way.
If there is a problem here I'd appreciate it if you'd point it out to me. I assure you I meant no ill will and I'm sure neither did Les.
Yours,
Kas.