Shopped around for keypad locks, both to solve the rekeying problem and prevent last night's little debacle (The key and combination lock were found in the grass outside this morning - go figure). So, of course, when I took off, someone had left the back door not only unlocked, but slightly ajar. Everyone in the house is completely innocent of this, of course.
Bought some cinderblock at Home Depot, that I'll try to dig in tomorrow (Block Llorona digging at the garden gate). Llorona is going out then. She continues to chew/rip/destroy everything she can get her teeth on, including the parts for the new vacuum cleaner.