1. Never sew when you are very tired.
2. Never try to sew something in a big hurry at the last minute.
3. Never sew when you are very distracted by familial craziness or other intrusions by "real life".
NEVER SEW WHEN ALL THREE ARE GOING ON AT ONCE.
The blue linen pants are fine. There is no biasing. I must have been standing very crooked that day. (I vaguely recall that my back was really sore for a couple of days, but now that I have relaxed on vacation that recollection seems so distant as to be lost in a fog somewhere). I certainly refuse to sew for the crooked days, until they become the majority at least.
If I ever have time to sew again, I will pick up where I left off and finish the pants. Thank goodness I did not trash them (but I might have trashed the lining, who can remember these things?) Meanwhile, the problem with vacation is all the piles of things that lie waiting for your return.