Originally Posted by AJLynn

There's a protocol for that. When you bring wine to a dinner it's a gift to the host and they don't expect to serve it unless you coordinated in advance.

OT, a good Scotch is a good gift, but remember that a lot of Americans don't have the taste for the fuller bodied stuff. Unless you know the guy well enough to know his tastes, go highland, not Islay. Glenlivet is a good option, Macallan is the safest bet (and almost never fails to impress).