Trust no one here is surely in the context of a total stranger approaching you with a story of some kind - that's how I'm reading it and responded accordingly.
In that context then, it's a case of exercising at least an initial degree of caution/suspicion, definitely / surely?
To just exercise total abandonment of any caution/suspicion for total trust seems a bit child like innocence, an ideal which for me cant be applied here on planet earth, with mankind as is.
As I say, I'm speaking in the context of ....
My System:
Amplification - Sansui AU-alpha 707 DR
Turntable - Technics SP10 MK2-Technics EPA-250 Tonearm-Yannis Tome 423.5Plus tonearm cable-Eichmann KLEI Absolute Harmony plugs.
Ortofon Cadenza Black moving coil cartridge-Fritz Gyger S re-tip. Panzerholz plinth.
CDP - Pioneer PD-91
Speakers - Spendor D7 on Soundcare SuperSpikes
QED Silver Spiral speaker cable-airloc banana plugs
Mains - Ultra Pure silver plated un-switched socket-Missing link EPS 500 silver plated plugs-Hi-Fi Tuning gold plated silver ceramic 13 amp fuses