This is one of my hobby horses
It irritates me to read of cruising yachts behaving as if they're doing you a favour by asking you to pay e30, e40, or much more, per day to work / crew on their sailing yachts. Most of them call it "sharing expenses" but in my opinion, at that rate it is taking on working crew for profit.
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Links Cruising yachts behaving if they're doing us a favour