Having a Singapore passport actually means that we get very little trouble wherever we go. My friends from other countries are also really envious when they learn that I don't need visas for a host of places, China, Vietnam, Malaysia, Indonesia, Cambodia, US or Canada just to name a few.
Recently it was in the news that some west african drug syndicates were targetting Singaporean women to carry drugs for them because the Singapore passport is seen a quite 'safe' as in we don't get checked as much as other Asian countries or African countries for that matter. Seems the men would promise love and money... silly women.
When I cross land borders in South east asia, i tend to get smiles and such from border guards, coz everyone's heard of us. hehe.
I've never had passport trouble before, but my boyfriend who is african american was pulled to some immigration office for an interrogation when he was LEAVING China. silly. fortunately he speaks Mandarin so it wasn't so bad coz he could talk himself out of the room. He gets very agitated about the bias against black pple entering asian countries. (It's true though)