Cat
The cat's reliability as a domestic entity presents considerable interpretive challenges. Cats possess no discernible sense of schedule, obligation, or consistency. A cat may appear for morning affection on seven consecutive days, then vanish for a fortnight to pursue matters it considers more pressing. The cat's reliability extends only to reliably doing precisely what it wishes, when it wishes, in the manner it prefers. Behavioural scientists estimate that cats comply with human expectations approximately 30 percent of the time, though this figure may be optimistically high.
Toaster
The toaster, by contrast, offers mechanical consistency that borders on the philosophical. When one depresses the lever, bread descends. Heating elements activate. A timer counts down. Toast emerges. This sequence has been replicated billions of times across human history with near-perfect fidelity. The toaster harbours no moods, recognises no weekends, and maintains no mysterious agenda. It does not sulk when provided inferior bread. It does not prefer one household member over another. The toaster simply toasts, reliably, predictably, without complaint or deviation.