Phew, when Kilgour Trout's baffled, we're all really in trouble! Hopelessly clutching at straws I see that the festival of the Running of the Bulls took place place the previous week in the location to be written below the grid, and is also known as the festival of San Fermin. Well, reading from left to right, you can get SAN from the 6th row, FERM from the 3rd, and IN from the 9th. Coincidence? Probably. I'll go and have a lie down now.