I returned from what was really enough of a teaching day to be going on with to find the Professor fit to be tied. The youthful plumber had spent much of the day here, and sorted out the leak. Prof: have you replaced ALL the plastic pipework? Wouldn’t that be a good idea while the floors are still up? ‘Plumber: aye, aye, let’s see how she goes, etc. etc.’; so at about 4, having dealt with the job in hand, he turned the water on again and a Niagara fell from a different bit of pipe. The circus starts again tomorrow. Tomorrow the Prof is taking his students on a field trip. He’ll have to shave in a teacup of hot water — he also promised them a home made cake and some cardamom buns. I started the cardamom buns yesterday and it’s been possible to get them processed reasonably hygienically but we had to give up on the idea of making a cake — you really have to think about washing hands, utensils, and so on. The cardamom buns are very echt Norwegian, plain, but strangely nice. I found a recipe on the internet, made about half quantities and still ended up with about 50. Fortunately I think they will vanish quite rapidly.