Be careful what you buy off the streets in the Caribbean. Some of those people make a living selling shit in tourist traps. Ask as many questions about the bud as you can think of. Also ask to see and smell. This will throw the majority of the scammers off.

I went on a cruise down that way a while back and a lot of my "peers" were easily taken for the yuppies they are deep down inside. Don't let this happen to you.