When somebody first commissioned a Pidgeot from me, I figured that it's not a hugely popular pokemon, and I'd probably never get commissioned for one again, so I didn't save the pattern.

So then I got commissioned for one again, but I thought that was just some kind of weird coincidence, so I didn't save the pattern.

This is number three, and I'm finally saving the pattern, but that probably means I won't get commissioned for one ever again. :D