Don't be too quick to judge someone by the way they look. Some of the hardest working executives have a rogue appearance to them. Perhaps they are wearing an earring or sport a rubbery looking set of wings and work the graveyard shift.
The least you can do is be kind and offer up a fresh moth or a stick of industrial bat food to your new friend. That bat could fly back to the cave and refer you to a large group of his batty relatives and your sluggy phone would start to ring off the hook with business inquiries.
Put this group of potential business slugmail contacts on your sonar and watch the slugdollars slide in!