Free lunch, etc.

I read this somewhere a while back: ‘A group of Sikhs stopped our bus in the middle of the highway to offer everyone chilled roohafza. Unparalleled hospitality, only in Punjab.’
Very nice and all that, but if I had been travelling on a bus and someone waylaid the bus to offer me roohafza, I would be paranoid to no small extent. I would suspect they were dacoits and had laced the drink with sleeping pills to rob us. Perhaps I am overly cynical by nature, but I find it strange to think someone I don’t know would be generous without meaning any harm to me or wanting something in return. Wonder if it is just me or skepticism that I share with my generation.