Travelling back to London on an overcast Wednesday afternoon (in the booked seat of a train company that shall remain nameless), the air conditioning broke and a small but steady stream of water leaked from the ceiling into my lap. The same thing happened to other people up and down the length of the carriage: dripping on scalps, trickling down backs and, in one unfortunate case, pouring straight onto a hapless worker’s laptop. The incident led to much British tutting and rolling of eyes. Complaints to the guard were followed by conversations with neighbours, the sharing of napkins and even a few jokes. This annoying shared experience led to a sense of unity amongst my previously silent fellow travellers.