A trick-or-treater!  Huzzah!$B$BWell now, even though you're doing something noble and collecting candies for a sick child, I can't let you off the hook that easily.  I have a yummy Gnomeregan Gumdrop to give to the sick child... if you make a train noise for me!  Haha, yes, that'll be the trick!  The price of this gumdrop is one train noise!$B$BChugga-chugga, $c!