Ever notice how we rush the hard parts in life just to get them over with, then wonder why they hit us so much harder? Same thing happens with tough talks, big moves, or learning something new, we skip the slow part and pay for it later. Taking your time on the way down is really just the same lesson the water keeps teaching.

A mislabeled bottle wouldnt cause the scalp itself to go orange though. Developer doesnt deposit color, it only opens the cuticle so whatever dye is mixed in can get in. If her part line was tangerine the next day, that sounds more like the color itself oxidized or grabbed unevenly at the roots, maybe from leftover buildup or her scalp being sensitive from the last salon. The 10 vol thing matters but it would make the lift weaker, not stronger, unless the bottle was actually 30 or 40 vol and just marked wrong.