Hah, this is why I'm glad my in-laws will probably NEVER get an urge to hop a flight to Texas to meet my extended family - my (step)dad's relatives are your stereotypically loud, ignorant, and obnoxious Americans that make the rest of us look bad. My parents, bless them, are unrepentantly tourists, which is stressful enough! At least both of my sisters have lived abroad as well (one taught English in France for a year, and the other studied Italian in Perugia for a summer), so they have an appropriate standard of behavior.