When you keep a Mexican as a pet, one must consider if they can actually care for their newfound family member/moustachioed taco receptacle. Mexicans require daily care and attention, such as:
1) Manual Labor
2) Bedding (a previous days newspaper will do fine, do not use anything of value as they will steal it)
3) Large enough place to run about and dig with a high, barb-wired fence, minimum 19 ft high. The Mexicans could easily jump anything of lesser height and escape.