Greg is your best friend.

When you're drinking, Greg will prevent you from doing silly things. Greg will keep you from making silly phone calls and sending regretful text messages.

When you're about to drive, Greg will tell you if you've had too much to drink, and should call a cab. Greg might also tell you that you could put back another one, if you were so inclined.

Greg knows you, more than you know yourself. Greg will help you make smart decisions.

Greg is your best friend.