Took over 24 hours to get back from Calais to Cambridge - ~2 hours queuing for the tunnel, plus ~3 hours delay, drive back to Croydon was fine, reached KX to find there were no trains, eventually got back to Croydon and crashed on brother's floor, Cambridge train this morning was delayed and took twice as long as usual. Back just in time for snack food followed by another interview at nCipher. ARGH.