While they can be effective, glue traps are touted as "humane" when in fact they are incredibly cruel, rendering the animal to die a slow death of thirst and starvation.
Typically when a mouse gets stuck in it, after their paws can't free them they will stick there nose in them to try to push off. So they die from suffocation long before starvation.
Hate sticky traps. Snakes can be removed with vegetable oil if they haven't died yet. I'm good with nonvenomous ones, but it would be fun to release a copperhead!