Rodrigo Pessoa taught his first-ever jumping clinic in the United States this week, at the Sonoma Horse Park in Northern California. It was a highly anticipated event that fell between two weeks of horse shows at the venue, which is just two years old and thriving. (If you’re a regular Sidelines reader you might remember my profile of show manager Ashley Herman , pub March 2011). The facility is impressive, the scenery gorgeous, and riders in Northern California continue to flock to it for its series of  excellent shows held May – September. But back to the clinic. On the Line did spend the weekend in Sonoma, but had to jet back to Florida early, regrettably taking a pass on the clinic. I was curious to know if Rodrigo took an active interest in the riders, how he dealt with the different horses, and how the riders responded to him