technology vs coffee

Student comes to the desk today for a reserve book.  He hands me his coffee stained appointment book with the library of congress number of the reserve item written on it.  Sorry, he says, its a bit of a mess.  No problem.  I get the book for him.  Handing back the appointment book I say, 'at least this survives having coffee spilt on it.'  Yes, he says, it went on my computer as well, had to get a new one.