lol they are like owning a bulldog. hate to say ALL normal. WAY smarter then many have any idea they are and he WILL test the boundaries of what u let him get away with lol. yes digging thats the best way to say it. we use the large black tubes they use underground and partially fill them with dirt and it gives them what they think is a place they dug out and this stopped a LOT of the deeper digging and escape attempts. even though its been over a year some take longer then that to fully trust someone and some never will we rescue here and work with this exact thing very often.