I had to work, so I missed some of the early trick-or-treaters, but I also got to buy dog costumes when they were 75% off (plus my 15% discount for working at Banfield.)
We tried having the dogs help us hand out candy, but it turns out it was really not their thing. They did lots of barking, scared some children and got put in their kennel in the back of the house.
Hodgins did much better and spent preetty much the whole evening hanging out on the end table by the door watching the children come by. He seemed to be evaluating all the costumes.
We tried putting a costume on Hodgins, but he REALLY hated it.