Crossing Mexican/Central American borders with a dog?

My partner and I are planning a climbing focused road trip through Mexico and possibly down to Costa Rica. We will have our dog with us and we were wondering if anyone here has experience crossing any of these borders with a pet?
From what I can gather (and have experienced in other parts of the world), regardless of what official policy is, most borders follow their own rules and you're pretty safe with a certificate of health and proof of vaccinations in both English and Spanish.
Any other accounts would be appreciated.

I have documentations of rabies vaccinations and all other vaccinations as well as proof of ownership and microchip number. How often are people finding that they actually are asked to furnish a "certificate of health" when crossing to Mexico?

Josh Janes wrote:I have documentations of rabies vaccinations and all other vaccinations as well as proof of ownership and microchip number. How often are people finding that they actually are asked to furnish a "certificate of health"?

Dylan B. wrote:My experience with Honduran border control is that they are both inefficient and corrupt. Be prepared to get solicited for a bribe for anything out of the ordinary.

Friends have told me that having a dog with you during the routine check points on the highway is helpful. They said that guards will often ask "Perro bravo?" (dangerous dog - in question of their dachshaund) to which they reply "Si, muy bravo" - and they're waved through quickly.