My problem is I leave near the border so when we go down to Mexico these stand want your money. A problem I have learned over the years, since I speak Spanish, but no one I have gone with does. I learned if I'm with people who speak English only, stick with English even if I also understand Spanish, don't let the sellers know you understand them speaking to others who work there as well, or they do rip you off. Listen to what they say in both languages, sometimes they do actually say their purchase price specially if you stick to one language whether it be English or Spanish. From what I have seen they use the language you don't speak in thinking you do not know it.