4 Years Of The Funniest Halloween Dogs Costumes In Under 4 Minutes...Looking back at 4 years of the scariest funny dog halloween costumes. Over the last 4 years my dogs have had the funniest reactions and had the best scary halloween costumes for Halloween. Watch today's funny trick not treat dog halloween scary spooky compilation. Don't miss out on the funny slow mo running scene at the end of this halloween dog compilation special!