Serious question, did anyone else trace reference lines backwards for like a year before realizing?

I always drew my center marks on the wrong side of the paper and would end up with mirrored chassis details on my blueprints, took me exactly 14 revisions on a job for a shop in Dayton to notice because the shop lead asked 'why are your holes on the left when my parts say right'. The moment it clicked was when I held my paper up to the light against a colleague's trace and saw my whole layout was flipped. Has anyone else had that embarrassing brain-fart where a basic habit was wrong the whole time, or was it just me?

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the_lisa18d agoMost Upvoted

Ugh, that is BRUTAL. I had the same thing with datum lines, kept flipping my whole left and right side because I always started my grid from the corner closest to me instead of the actual part zero. What finally fixed it was taping a tiny arrow sticker to my desk pointing toward the true front of the part, and then I'd flip my trace over and check it against the light EVERY single time before I inked anything. Took about two weeks of that before my hand just started doing it right.