Machinbird,
It can be heck to get old
And quite dangerous when you still try to do "multitasking".
Actually i am in parallel thinking how to conduct a "critical mission" by May end.
I saved my life some times doing "triple check" in some critical moments.
More experienced i normally double check non critical issues.
This (serious imo) error i detected in the first check. Actually i guess during the time you were asking me for the confirmation.
About this a learned a nice one:
Donīt be in a hurry. But donīt loose time.