Sympathies merlot, mine came home today, after going to the train station at 7am and got on the train, only to be told off the guard that he shouldn't be on it and had to get on as his ticket was for the 12 noon train! Back to uni and a wait for the later train! These people are supposed to be intelligent! 
Apparently they have a chart on their landing to see who gets the most "idiot" stickers, I do think my son is winning at the moment. I've just thought that I have to think of him as an alien, you know, like E.T., who comes to visit and then "phone home". At least now I know that he is only here for three weeks, I will get myself back to myself sooner than I know. And in the meantime, I will enjoy the alien. 