My cat has a bad temperament and attacks people.

A cat that always attacks people may simply like being alone, or its trust in people isn’t high yet. First, don’t disturb it too often; give it a relatively free, quiet, comfortable space. At the same time, feed it on a set schedule, and occasionally interact with toys like a teaser wand or laser pointer that keep some distance and avoid attack. Once the cat gradually adapts, you can try closer contact—offer churu or canned food by hand, and gently pet its back, chin, or head. Watch its reaction and stop if it looks impatient. If the owner truly has no time or experience to correct the behavior, rehoming is an option.