
Hi jayj
he is a puppy and full of natural exuberance plus prone to over excitability (typical of them all, not just SBTs :) )
Try not to over excite him, if you decide on a time-out plan it is better to leave him alone for one or two minutes by removing yourself from the room rather than lift him into another (as by definition this rewards his behaviour - the physical contact being attention).
I have always used and recommended the method of training bite inhibition in pups and over many dogs in numbers and in years it has never failed me. Hopefully if you read
THIS ARTICLE and print off a few copies to share among household members and visitors you will end up with a happy, well adjusted, friendly little guy who learns what is and isn't acceptable :)
best wishes, Teri
Edited to add soak a couple of tea towels and always have one in the freezer - a good way of soothing sore gums during the teething process (along with the other suggestions you have :)