A few years back, in their summer variety 12 pack, Sam Adams had a cranberry (maybe raspberry, don't remember for certain) lambic. Most god awful beer I've ever tasted. Also the first "lambic" I'd ever tasted - had me convinced for a couple years that lambics were just bad, until I had a lindeman's and realized Sam Adams just had no idea what the style was all about.
+1 on how aweful that cranberry lambic was, also did not like the east/west kolsch or their bonfire rauchbier. The rouchbier tasted of liquid smoke and would have bee best consumed by pouring out over a bonfire.