I'd say that freshers week and the start of the first term is based a lot around clubbing, but after that everyone settles down a bit when they realise that they actually have to study. Having said that, clubbing isnt for everyone and not going doesnt mean that you will have a rubbish social life. In freshers week my hall organised film nights for people who didnt fancy going out, and after freshers there was rarely a night when everyone went out together - there would always be a few people staying in. I know some people who only went out clubbing once in the entire year and they certainly had a social life. There have been many film nights or nights of just going to the bar/pub.
The buses stop running at about 9:30-ish, but I know plenty of girls who have got taxis back on their own fine. Walking back to stoke bishop alone is not advisable.
Also, the food at Badock isn't that bad. You do get the occasional dodgy meal but on the whole they are fine. You don't get any lunch, although there is the opportunity to sneak out plenty of food at breakfast (which I might add is a very good meal).