I have a hard time to ever rust my knives: I carry them IWB when trailrunning (and sweating of course) or sometimes for days in wet pockets or packs, cut food,don´t "baby" the blades at all, but still almost no signs of corrosion on VG10, S30V, XHP, BD1 and BD1N, N690, D2.... , even HAP 40 shows though a nice patina actually no real rust in my use
My Rex 45 Manix LW though has developed some tiny specs already. Hard to be seen though, and I did cut meat and fruits already with this knife and carried it a lot in sweaty and humid conditions as well.
On one occasion I left an O1 blade (very rustprone anyway of course) accidently in dissolved denture cleaner (yes, I luckily DO still have all my natural teeth
, but denture cleaner is great for cleaning bike bottles or the like) for an hour or so. This really caused a lot of corrosion in a short period of time - no wonder, just looked up what ingredients that stuff can have: Citric acid, sodium bicarbonate, sodium perborate, sodium polyphosphate.. sounds pretty aggressive...
Top three going by pocket-time: Endura 4 in VG 10/Micarta-scales; Stretch 1 in VG 10; Endura 4 in HAP 40