This one manifested itself yesterday afternoon as we walked home in the rain from York's Castle Museum:  Jocelyn (and therefore, by naive extrapolation, every American), refers to light rain as "sprinkling" and heavy rain as "pouring".  I, on the other hand, seem to have grown up using the analagous phrases "spitting" and "pissing".  I guess that must say something about us, but I'm not certain exactly what...

The museum was excellent, incidentally, and well worth a visit.  All the displays were very people-centric, showing how everyday folk in recent decades and centuries have lived.  It was all very relevant and interesting - and York card holders get in free, which is always a bonus.